Technical infringements, poor driving and just plain bad Formula One etiquette—the sport has provided it all over the years.
This usually leads to a post-race penalty, or a rap on the knuckles if you're lucky, and sometimes there's a grid penalty for the next race waiting.
But then there are incidents which attract huge, huge repercussions. The kind that force teams or sponsors out of the sport altogether.
On the flip side, there are heinous incidents which deserve greater punishment than is dished out.
This list is not definitive (justice is a matter of perception and interpretation, after all) but covers 10 of the most controversial penalties the sport has delivered.
Have we missed anything? Get in touch in the comments below.