Most of the time youtube adds are quite annoying. This one, however, was a nice surprise. Glad I didn't skip it.
Three men and a woman get showered with "burcak" (slightly fermented thick grape juice) when traveling in a car in this Czech commercial from Kooperativa (an insurance company). It's not a great scene but not bad for a 30s youtube add.
I know, it's not very good but at least the whole thing is shown, unlike a similar scene from another Czech movie.
Talking about great messy moments that never happened, in the movie "Bobule" (2008) there is a scene where this fermented grape juice explodes in a car with Tereza Ramba and two other dudes sitting inside. After that in the next scene, Tereza Ramba is shown bathing in a river, so plot-wise they got messy. Sadly, it is not directly shown as the actual messy part was probably never filmed ; only arranged to look convincing: