He leaves used tissues for waitstaff to clean, I make him throw them away, AIO?
So, my dad blows his nose a lot, bad allergies. He usually has a few used tissues in his pocket when he’s out and about that he throws away when he gets home. But when we go out to eat, he will blow his nose and just leave the tissue on the table for the server to clear, and I think it’s totally disgusting and rude. He says it’s no different from a used napkin, but I always beg him to just put it in his pocket and throw it away in the bin as we leave or take it home like he does with the rest. So is it as gross as I think or AIO?