I just watched this episode last night after not having seen it since I was about eight. Its great! I love how Mary and Laura are fighting towards the beginning and are sick of each other -- usually they're so close!
I felt really bad for Patrick. He's such a great guy, and Cass was just creepy. This is the sort of thing where you really start to like a character that's not a show regular. Unfortunately, TV Land's sound died on me at the final scene where Mary decides that Cass is a jerk, so I didn't get to hear what she says. But it worked out! YAY!
Well written and funny. The pickpocket subplot is good too!