Stupid question of the day

A very annoying, very slow client called me four times this morning, each question dumber than the previous. Perhaps the worst one:

Client (asking about her group's reservations): "You don't make separate reservations for the couples?"

Me: "No, if it's a couple with the same last name, we just make one reservation."

Client: "But how does the front desk know that they are a couple? Do they ask if they are husband and wife?"

At this point I had to put her on hold, laugh my ass off, compose myself, then pick up the phone again.

Me: "No, the front desk doesn't ask them. If they have one reservation and the same last name and are sharing a room, it's a pretty safe assumption that they are a couple."

Client (not even realizing how idiotic her questions were): "But what if they don't have the same last name, but are sharing a room?"

Me: "then, as you can see from the rooming list we sent you, we make two separate reservations, even if they are sharing a room."

Client: "about the rooming list, how do I know that the two people (names) are in the comp suites we requested?"

Me: "because in the rate column, instead of the group rate, it says $0." (thinking) duh.

Seriously? I hope this woman doesn't work around any sharp objects or heavy machinery.