@HDMI1
actually, slime knows he has to use the wish quickly anyway since Fenrir is hot on his ass...
hmm... but the trade off is good I'll say. for the mistake, slime got a powerful Fenrir in debt to him with a stronger moral compulsion since slime truly showed his super straight-laced logic/child-like innocence....
and plus, the author could also keep the golem card for a bit longer for more prolonged content for the story...