Who doesn’t like a nice day out at the zoo? Well these Irish lads who seemed to anger the gorilla in Berlin Zoo will probably be rethinking their next visit.

Uploaded by Stefan Nolan the video, one of our constant favorites, shows the large gorilla plodding around his enclosure apparently uninterested in his observers until, without warning he lobs a rock at the lads.

On his post Nolan wrote “My friends and I took a trip to Berlin Zoo to pass the time while waiting for our flight home to Ireland. Apparently gorillas aren't a fan of the Irish.”

Watch this short video to the end:

Read more: An orangutan saves a duckling from drowning (VIDEO)

Don't anger German gorillas! This video has to be seen to be believed and could have ended very, very badly.Getty images