<human>: This happened last friday, So I am a waiter and 18 years old in Canada. I can serve and handle alcohol legally and have just started taking tables. I had a couple tables and was serving a family of 3, a mom, dad, and a baby. So I had 1 pint and a wine glass on a tray with one hand, and a kids chicken fingers plate in the other. As I walk through the dining room, it is quite busy since its the Friday dinner rush. I'm navigating my way through when I finally approached at the table and stopped. Behind me, a lady moved out her chair to get up knocking my elbow causing the tray to shift. The fucking pint of Canadian fell and dumped on the babies head in the booster seat. The wine glass was fine, but somehow I managed to tip the pint over. The parents gave me a look of disbelieve and horror. All eyes were on me at that point, and one drenched crying baby. I spewed apologies every second and the parents were fucking mad, and the crying baby added to the commotion.

Can you give me the gist of the text in a nutshell?
<bot>: I spilled a pint on a babies head. Easily the worst fuckup I've had compared to the others I have had so far.