In Ep. 22, Windam is hypnotized and attacks Dan. Dan transforms and literally wears Windam down to snap him out of it.
In Ep. 9, Furuhashi is patrolling the streets when a girl walks in front of the car. When she asks if he's Dan Moroboshi, he says yes and shakes her hand, only to be zapped. His teammates had a laugh about it, especially Dan.
The Cinar dub of Episode 39 has a hilarious Stay in the Kitchen reaction from Dan to Anne (called Donna in the dub) trying to shoot the Guts aliens (as opposed to calling the Ultra Garrison from the car and ducking for cover).
Dan: You're embarrassing me in front of the aliens, Donna!