For now always check if sit is occupied otherwise it can glitch like hell

src/com/cnaude/chairs/Chairs.java

@@ -30,7 +30,7 @@ public class Chairs extends JavaPlugin {
     public List<ChairBlock> allowedBlocks;
     public List<Material> validSigns;
     public boolean autoRotate, signCheck, permissions, notifyplayer, opsOverridePerms;
-    public boolean invertedStairCheck, seatOccupiedCheck, invertedStepCheck, perItemPerms, ignoreIfBlockInHand;
+    public boolean invertedStairCheck, invertedStepCheck, perItemPerms, ignoreIfBlockInHand;
     public boolean sitEffectsEnabled;
     public boolean authmelogincorrection;
     public double sittingHeight, sittingHeightAdj, distance;
@@ -177,7 +177,6 @@ public class Chairs extends JavaPlugin {
         permissions = getConfig().getBoolean("permissions");
         notifyplayer = getConfig().getBoolean("notify-player");
         invertedStairCheck = getConfig().getBoolean("upside-down-check");
-        seatOccupiedCheck = getConfig().getBoolean("seat-occupied-check");
         invertedStepCheck = getConfig().getBoolean("upper-step-check");
         perItemPerms = getConfig().getBoolean("per-item-perms");
         opsOverridePerms = getConfig().getBoolean("ops-override-perms");

src/com/cnaude/chairs/EventListener.java

@@ -244,20 +244,17 @@ public class EventListener implements Listener {
                 }
             }
             
-            // Sit-down process.
-                if (plugin.seatOccupiedCheck) {
-                    if (!plugin.sit.isEmpty()) {
-                    	if (plugin.sitblock.containsKey(block))
-                    	{
-                    		if (!plugin.msgOccupied.isEmpty()) {
-                    			player.sendMessage(plugin.msgOccupied.replaceAll("%PLAYER%", plugin.sitblock.get(block)));
-                    		}
-                    		return false;
-                    	}
-                    }
-                }
+            //Sit occupied check
+            if (plugin.sitblock.containsKey(block))
+            {
+            	if (!plugin.msgOccupied.isEmpty()) {
+            		player.sendMessage(plugin.msgOccupied.replaceAll("%PLAYER%", plugin.sitblock.get(block)));
+            	}
+                return false;
+            }
         }
 		return true;
+		
     }
     
     private Location getSitLocation(Block block, Float playerYaw)

src/config.yml

@@ -41,7 +41,6 @@ sitting-height-adj: 1.0
 permissions: true
 notify-player: true
 upside-down-check: true
-seat-occupied-check: true
 upper-step-check: true
 per-item-perms: true
 ops-override-perms: false