I hate guys who take off their shirts while running. It’s cocky, childish and says a lot about their personality. More common in western countries. Less in east Africa.
Example:
https://www.athleticsweekly.com/wp-content/uploads/2014/10/rupp_farah.jpg
You don’t see any shitless Kenyans. Although I saw clips where they take off their shirt, it’s very rare. Unlike Farah who always takes it off.
here: