Harry on the interview board for new inspectors. Especially when he cooks up the scenario about the female board member and a shetland pony.
Captain McKay arriving with a helicopter and shouting at Bobby Maxwell over a megaphone that he is going to give in to his demands and that he has the money... after Harry has already blown him up with a LAW.
The way that Harry handles getting transferred to Personnel. It's the way he says the last line, with a mixture of Oh Crap and "that figures".