if I've understood right just make an attribute initialize it at 0 then if someone click outside the answer give to the attribute value 1 then make a control on touch if this attribute is 1 then die ( == fail) else go on.
u can use this way if the answer is an actor and what is outside it, is an other actor.
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u can use this way if the answer is an actor and what is outside it, is an other actor.