Apart from the usual time wasters I haven't had that many myself, but something yesterday made me laugh in disbelief so thought I'd share!
I was selling 4 storage boxes that fit in an IKEA unit. The item title, description and images all very clearly explain that only the boxes are for sale. I'm selling them for £5. I agree price and pick up, all good. She arrives yesterday and says she's here to collect the unit. Yep, she thought I was selling a whole unit plus the boxes for £5! She was very put out and asked if I was sure 😂