Patrick Mahomes and his wife, Brittany, went for a not-so-wild on a mechanical bull earlier this summer -- and based on the video we got of them on this thing ... you can tell the owners of the joint wanted to protect their QB.
The Chiefs star and his crew were at PBR Big Sky in Kansas City way back in early June -- for a charity event that a lot of celebs were involved in at the time -- and while hanging out ... it seems Pat and Brit got a little courage in them, wanting to mount the fake bull.