Not a Great Day

I found this on my car when I got to my car after finishing university at 9pm:

"Dear Sir/Madam
I have to apologise my child was caught short and was violently sick on your car
Sorry"

At this point in the day I was ready to just go home and go straight to bed so that the day would be over. However, about an hour or so later I found that it was a practical joke my friend had pulled. I was relieved to say the least.