Kimbo brought a gun to ATT. Fellow "Ultimate Fighter" season ten contestant, Justin Wren told TapouT Radio: "He definitely talked about some crazy stuff. I heard a story where he went down to ATT to train and he got arm-barred. Kimbo doesn’t like to tap so he didn’t tap and the guy hurt his arm so he came back in there with a gun!" Wren recounted. "Cops were called and everyone went nuts, so yeah we didn’t want to necessarily mess with Kimbo’s beard but there was definitely talk about it." "He felt the guy was really trying to hurt him so he said if someone is going to really try and hurt me, in my career, that is how my make money for my family, so then he said he went and got a gun and was starting to come back in there and they stopped him at the door… that was straight out of his mouth."