WATCH: Brian O’Driscoll cruelly puts fans through insanely gruelling endurance test

Brian O'Driscoll got way too much enjoyment from watching exhausted rugby fans make a show of themselves.

If you meet Brian O'Driscoll, George Gregan and Jason Robinson in park surrounded by rugby balls and training equipment, politely say hello before carrying on with your day. It's just not worth getting involved in that stuff, if this video from HSBC sport is anything to go by. They'll make you run, they'll make you spin, they'll make you pick up and carrying a huge rugby player and at the end of it, they'll make you look like a right mug for not being able to do what only elite professional athletes should be able for. You'll cry, you'll vomit, you'll cry into your own vomit, but you might just become an internet celebrity and sure, isn't everyone looking for their 15 minutes of fame? Maybe not like this though. There are certainly easier avenues to explore.