Ok, so, there's this guy who owns a bakery, happily serving people from behind the counter.
One day, in walks a rabbit. "Got any lettuce?"
"No sir, this is a baker's. You want the greengrocers across the street." Out walks the rabbit.
Next day, in walks the rabbit. "Got any lettuce?"
"Uh, no sir, still a baker's. You want the greengrocers. It's over there." Out walks the rabbit.
Next day, in walks the rabbit. "Got any lettuce?"
"Sir, this is a bakery. We don't have vegetables of any kind. Go across the road." Out walks the rabbit.
Next day, in walks the rabbit. "Got any lettuce?"
"No! We don't serve lettuce! We don't have carrots, cabbages, kumquats or kale! We are a bakery! We sell cakes, we sell croissants, we sell buns, baps and bagels! We do NOT SERVE LETTUCE! GO AWAY!" Out walks the rabbit.
Next day, in walks the rabbit. "Got any lettuce?"
"NOOO! NO LETTUCE! NO MORE! SHOVE OFF! OUT! GET OUT!" Out walks the rabbit.
Next day, in walks the rabbit. "Got any lettuce?"
"Nnnnng.... right. Look here, you little shit. If you come in here ONCE more asking ME for LET-TUCE, I am going to NAIL your LONG, FLOPPY EARS to the COUNTER! Go away!" Out walks the rabbit.
Next day, in walks the rabbit. "Got any nails?"
"NO!!!"
"Good. Got any lettuce?"