Only check main hand for sit attempt

src/com/cnaude/chairs/listeners/TrySitEventListener.java

@@ -12,6 +12,7 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.inventory.EquipmentSlot;
 import org.bukkit.material.Stairs;
 import org.bukkit.material.Step;
 import org.bukkit.material.WoodenStep;
@@ -29,7 +30,7 @@ public class TrySitEventListener implements Listener {
 
 	@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
 	public void onPlayerInteract(PlayerInteractEvent event) {
-		if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
+		if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getHand() == EquipmentSlot.HAND) {
 			Player player = event.getPlayer();
 			Block block = event.getClickedBlock();
 			if (sitAllowed(player, block)) {

src/com/cnaude/chairs/vehiclearrow/v1_10_R1/CraftChairsArrow.java

@@ -2,6 +2,9 @@ package com.cnaude.chairs.vehiclearrow.v1_10_R1;
 
 import net.minecraft.server.v1_10_R1.EntityArrow;
 
+import java.util.Collections;
+import java.util.Set;
+
 import org.bukkit.craftbukkit.v1_10_R1.CraftServer;
 import org.bukkit.craftbukkit.v1_10_R1.entity.CraftArrow;
 import org.bukkit.entity.Entity;
@@ -27,4 +30,28 @@ public class CraftChairsArrow extends CraftArrow implements Vehicle {
 		super.remove();
 	}
 
+	@Override
+	public int getPortalCooldown() {
+		return 0;
+	}
+
+	@Override
+	public void setPortalCooldown(int val) {
+	}
+
+	@Override
+	public Set<String> getScoreboardTags() {
+		return Collections.emptySet();
+	}
+
+	@Override
+	public boolean addScoreboardTag(String tag) {
+		return false;
+	}
+
+	@Override
+	public boolean removeScoreboardTag(String tag) {
+		return false;
+	}
+
 }

src/com/cnaude/chairs/vehiclearrow/v1_9_R1/CraftChairsArrow.java

@@ -2,6 +2,9 @@ package com.cnaude.chairs.vehiclearrow.v1_9_R1;
 
 import net.minecraft.server.v1_9_R1.EntityArrow;
 
+import java.util.Collections;
+import java.util.Set;
+
 import org.bukkit.craftbukkit.v1_9_R1.CraftServer;
 import org.bukkit.craftbukkit.v1_9_R1.entity.CraftArrow;
 import org.bukkit.entity.Entity;
@@ -27,4 +30,56 @@ public class CraftChairsArrow extends CraftArrow implements Vehicle {
 		super.remove();
 	}
 
+
+	@Override
+	public void setInvulnerable(boolean invulnerable) {
+	}
+
+	@Override
+	public boolean isInvulnerable() {
+		return true;
+	}
+
+	@Override
+	public boolean isSilent() {
+		return true;
+	}
+
+	@Override
+	public void setSilent(boolean silent) {
+	}
+
+	@Override
+	public boolean hasGravity() {
+		return false;
+	}
+
+	@Override
+	public void setGravity(boolean gravity) {
+	}
+
+	@Override
+	public int getPortalCooldown() {
+		return 0;
+	}
+
+	@Override
+	public void setPortalCooldown(int val) {
+	}
+
+	@Override
+	public Set<String> getScoreboardTags() {
+		return Collections.emptySet();
+	}
+
+	@Override
+	public boolean addScoreboardTag(String tag) {
+		return false;
+	}
+
+	@Override
+	public boolean removeScoreboardTag(String tag) {
+		return false;
+	}
+
 }

src/com/cnaude/chairs/vehiclearrow/v1_9_R2/CraftChairsArrow.java

@@ -2,6 +2,9 @@ package com.cnaude.chairs.vehiclearrow.v1_9_R2;
 
 import net.minecraft.server.v1_9_R2.EntityArrow;
 
+import java.util.Collections;
+import java.util.Set;
+
 import org.bukkit.craftbukkit.v1_9_R2.CraftServer;
 import org.bukkit.craftbukkit.v1_9_R2.entity.CraftArrow;
 import org.bukkit.entity.Entity;
@@ -27,4 +30,47 @@ public class CraftChairsArrow extends CraftArrow implements Vehicle {
 		super.remove();
 	}
 
+
+	@Override
+	public boolean isSilent() {
+		return true;
+	}
+
+	@Override
+	public void setSilent(boolean silent) {
+	}
+
+	@Override
+	public boolean hasGravity() {
+		return false;
+	}
+
+	@Override
+	public void setGravity(boolean gravity) {
+	}
+
+	@Override
+	public int getPortalCooldown() {
+		return 0;
+	}
+
+	@Override
+	public void setPortalCooldown(int val) {
+	}
+
+	@Override
+	public Set<String> getScoreboardTags() {
+		return Collections.emptySet();
+	}
+
+	@Override
+	public boolean addScoreboardTag(String tag) {
+		return false;
+	}
+
+	@Override
+	public boolean removeScoreboardTag(String tag) {
+		return false;
+	}
+
 }