I’ve read some things indicating Chumlee is actually a pretty smart guy and most of what we see on the show is an act.
He plays a fool on TV. And maybe because he is.....
Legal troubles
On March 9, 2016, Chumlee’s home was raided during the course of an investigation into sexual assault allegations. During searches of his residence, police found crystal meth, marijuana, Xanax, and multiple firearms. Evidence of possible cocaine use was also found. Subsequently, Chumlee was arrested.[25][26][27]
Chumlee was released on bond the following day. His first appearance in court was set for March 11, 2016.[28][29][30]
On May 23, 2016, Chumlee was charged with 20 felony counts, including drug and weapons charges. David Chesnoff, Russell’s lawyer, confirmed that the reality TV star pled guilty to a felony weapons charge, unlawful possession of a firearm, and a gross misdemeanor of attempted drug possession in a deal which calls for three years of probation and counseling.[31][32]
https://en.wikipedia.org/wiki/Chumlee#Legal_troubles