Fruit Plumber

Alright, listen up, you simple human. Explain bear is here. This joke is SO basic, even a baby bear could get it. See, they ask about a 'fruit' that can 'fix a sink'. Normally, fruit doesn't fix sinks, right? But then the answer is 'A plum-ber'. That sounds exactly like 'plumber', which IS a person who fixes sinks! It's a pun, get it? Like, plum... plumber? Geez, you're really not the sharpest claw in the forest, are you?