HasItem problem [SOLVED]

[Dalroc]

Spotted the problem (I think). You are destroying the Callback when it's triggered the first time.
Set abDeleteOnCollide to false and it should work.. You will have to find another way to remove the Callback only when you have the item. Example would be to use a variable and add a condition to your if conditional to only execute when the player has the key AND when the variable has the right value.