Sporting Goods Store/Antique Store
That age progression guy.... wow.
I loved the way Nathan would say "okay" to the guy's assurance that the pictures were 90% accurate in determining what the children would look like in 10-15 years. It had a sense of "this guy is creepy" combined with "this guy is insane" all in a single "okay."
And then he brought back his Santa friend to pose as a weary astronaut beat down by a hard life of the dangers of space exploration. "I really just wish I had decided to be a soccer player instead of an astronaut"
Then there's the antique store, with Nathan telling the woman most of her stuff was crap that could only get sold if people broke it. His proof of concept to get a guy drunk, dress him up in a large costume, then lead him into the store with smaller aisles towards the free pizza in the back for maximum damage was hilarious. And when the woman is tallying up the damage, the guy is standing there eating a piece of the free pizza.
Just when you think the episode couldn't get any better, the guy starts talking about how he and his brother have sex with women together, and the guy insists he meets that brother, all while Nathan is still wearing his Peter Pan costume.