Fame means nothing in these situations. Welcome to WatchMojo and today we’ll be counting down our picks for the top 10 crazy Bear Grylls celebrity challenges!

For this list, we’ve gathered the grossest, most gruelling and most brutal examples of Bear Grylls testing celebs to their absolute limits. The British explorer isn’t afraid to get his hands dirty, or any other part of his body, and some of today’s clips are pretty extreme – including some scenes involving the capture of animals. Some viewer discretion is advised.