Mr. Monk and the Panic Room - S3-E2
Factual error: The cops gain entry to the panic room to be faced with a chimp waving around a loaded handgun, apparently having shot a man, and shrug and make jokes about reading him his rights, instead of expressing the slightest concern that this animal might shoot them. Cops shoot remotely aggressive dogs all the time, but an ape with a gun doesn't even make them raise an eyebrow. Plus the police never did a gunshot residue test on the chimp. Standard procedure, and would've proven they didn't shoot.
Mr. Monk and the Panic Room - S3-E2
Factual error: Disher hands Stottlemeyer a pistol and tells him that he just unloaded it, but Stottlemeyer just takes his word for it instead of double-checking it. You NEVER, under any circumstance, take anyone's word that a gun is unloaded; you always check it yourself. As a police officer, Stottlemeyer would know that.
Answer: The two men are trying to work out a secret deal between them without involving the union, which means the workers' interests aren't being represented and defeats the whole purpose of a union. The mayor would lose labor's support and Cusack's union troubles would just be starting.
Captain Defenestrator