diff --git a/planet/Objects.ocd/Clonk.ocd/Script.c b/planet/Objects.ocd/Clonk.ocd/Script.c
index faa5be845..1b18c8930 100644
--- a/planet/Objects.ocd/Clonk.ocd/Script.c
+++ b/planet/Objects.ocd/Clonk.ocd/Script.c
@@ -282,6 +282,13 @@ public func RejectInteractionMenu(object to)
 	return _inherited(to, ...);
 }
 
+// You can not display the Clonk as a content entry in a building.
+// Otherwise you can transfer a crew member to your inventory...
+public func RejectInteractionMenuContentEntry(object menu_target, object container)
+{
+	return true;
+}
+
 public func GetSurroundingEntryMessage(object for_clonk)
 {
 	if (!GetAlive()) return Format("{{Clonk_Grave}} %s", Clonk_Grave->GetInscriptionForClonk(this));
diff --git a/planet/Objects.ocd/HUD.ocd/ObjectInteractionMenu.ocd/Script.c b/planet/Objects.ocd/HUD.ocd/ObjectInteractionMenu.ocd/Script.c
index eb6d12768..7a60833c8 100644
--- a/planet/Objects.ocd/HUD.ocd/ObjectInteractionMenu.ocd/Script.c
+++ b/planet/Objects.ocd/HUD.ocd/ObjectInteractionMenu.ocd/Script.c
@@ -837,6 +837,12 @@ func FxIntRefreshContentsMenuTimer(object target, effect, int time)
 	var obj, i = 0;
 	while (obj = effect.obj->Contents(i++))
 	{
+		// Ignore objects that do not want to be shown as contents
+		if (obj->~RejectInteractionMenuContentEntry(cursor, effect.obj))
+		{
+			continue;
+		}
+
 		var symbol = obj;
 		var extra_data = {slot = effect.slot, menu_index = effect.menu_index, objects = []};