This happened the day that I broke up with my boyfriend, (see OT threads), so I'm already feeling like crap but I still try to smile pretty and complete my shift. But anyway, when I was a bit busy and bringing a tray of two beers and four waters to a table, one dropped. And then another. And another....until the whole tray was just laying on the floor. It looked like slow-mo in a movie; you just stared at it, mystified, until it registered that there were drinks all over the floor.
I apologized profusely, and our wonderful bus boy helped to pick the mess up. I had accidentally dropped some liquid onto another table, and they had more of a right to be pissed off than the people who the drinks were intended for, since they got slightly spilled on. But they just laughed it off and I moved them to another table. The people who were supposed to get the drinks, however, treated me like I was some kind of retard for the rest of their meal. I got them their food and replacement drinks quickly, but this one man would make snide comments like: "Now when our food comes, we won't be wearing it, right?" Way to kick a girl when she's down!
(Mind you, that was only the second time I have dropped a tray in my entire waitressing life; the other time was about a year ago).