Stopped people from stealing VillagerShop villagers with a boat (or any vehicle)

src/main/java/com/alttd/events/VehicleEvent.java

@@ -0,0 +1,20 @@
+package com.alttd.events;
+
+import com.alttd.objects.LoadedVillagers;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Villager;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.vehicle.VehicleEnterEvent;
+
+public class VehicleEvent implements Listener {
+
+    @EventHandler
+    public void onVehicleEnter(VehicleEnterEvent event) {
+        Entity entered = event.getEntered();
+        if (!(entered instanceof Villager))
+            return;
+        if (LoadedVillagers.getLoadedVillager(entered.getUniqueId()) != null)
+            event.setCancelled(true);
+    }
+}