"A man walks into a shop..." Like most good punchlines, this ones at the end.

Eric just opened his own tile repair shop. An elderly man walks in asking for help. Eric describes to him all the ways he repairs broken tile or how he can replace tile floors and walls. While he was talking to the old man, two more elderly men walk in also asking for help. Eric turns to the new customers and tells them the same thing he said to the first man about repairing and replacing tile. He talks to all three men for about a half hour before three old women enter the shop. "What's taking you so long?" asks one of the women to the man who entered the shop first. "Did he fix it yet?" The first man tells his wife what Eric said about fixing and repairing tile. "WHAT!" the old women cries. "You can't help them have erections?" "Ma'am!" Eric said. "This is a tile repair shop, not a doctor's office!" The old lady looks at Eric with surprise. "Then why is this place called Eric Tile Dysfunctions Repair?"