getting peed on after being vomited on

last week, I awoke in the middle of the night to my darling Sam vomiting on my forehead. He's 5 and I love him more than the world. He is so soft and so cute and so quirky and grouchy and he has the best laugh and sense of humor of any 5 year old ever.
So this week, we drove down to cocoa beach to watch the discovery shuttle launch! It was about 3 hours from our house and just a perfect beach day. it was about 75* and sunny and gorgeous and I had my Paul and Danielle and April there and all the kids! It was a wonderful day that will never be forgotten. for a couple of reasons ; The shuttle launch was awesome! And what happened on the drive down...
Fisher was riding in April's car so me and Paul just had Sam and Lucy. I was driving and we had just got off the freeway in Orlando and into the launch traffic. Paul was going to be late for his surfing lesson, we were out of gas and figuring out that there wasn't a gas station for twenty miles when Sam tells us he has to pee RIGHT NOW. We are in stop and go traffic so I said he should just pee in a water bottle (we do this sometimes). But Paul was looking for a gas station on his phone and so he handed him a big gulp cup. So Sam was very nervous and he tried to put the cup on the seat and stand up to pee in it, but Lucy kept grabbing the cup! Paul was yelling at him to just get away from Lucy, so I just reached back and said I'd hold the cup. Paul is still messing with his phone and I am driving and holding the cup behind me. Then my arm is very warm. then we hear the cup filling, and then we hear nothing and then we hear filling and then splash Paul in the front seat. He starts freaking out and yelling as my arm and seats are hosed again and then we hear the cup filling once more. Paul is furious and flabbergasted. But he has only been splashed. I am dripping in urine and so is MY car! I started laughing so hard I couldn't stop. apparently, you need that bottle shape to tame wayward streams. bless his cute little heart.