Boot to the head.
So yeah, if you go back a couple issues, you will remember the poor guy Alex gave a quarter to. And now the pay off for the joke. AND YES, we know we stole this from UHF. Guilty as charged.
I love Alex yelling so loud in the third panel that it wipes out Walter's face. Normally you wouldn't do that, but I think it nicely shows Alex shouting OVER Walter, literally and figuratively.
Oh, and look at the moon in the last panel. If you DIDN'T put CHA on your moons in the 90's, you weren't cool.