Excuses Don't Sound As Good The Second Time Around

It's true. After a day spent prepping the kitchen in the cafe I work at (we were closed for supposed "remodeling" of which the only tell-tale signs are a new bathroom floor, and the pastry case in a new spot). We the staff were supposed to go out on the town. Since the last staff party was uncomfortably spent at an all-nude strip club (I find the distinction important. The ladies are not only All-Naked, it is also more participatory then a topless club) anyway, I haven't been able to get the image of a naked woman crawling on her hands and knees to pick up her tips out of my brain. Everyone else seemed to have a raucous good time, so I thought it best to sit this one out. I was all ready to approach my boss, saying, so sorry but I have to drive my roommate to the airport blah blah blah. Which was a convincing (in my mind) half-truth. My roommate was going to the airport, I just wasn't driving her. So, mere moments before my approach, one of my co-workers (the one I want to be friends with), explains she's so sorry, but she's driving her friend to the airport. Now I'm angry at her for using such an unconvincing lie, now no-one will believe I'm taking my roommate to the airport, which of course I'm not. Well, it was my excuse first (again only in my mind) so I used it anyway, chuckling with my boss about the coincidence that both of us were going to the airport, and oh, we should carpool...needless to say I got home just in time to fall asleep by nine.