Doghead's Cosmic Bar

Someone who blows up a San Francisco Bus:

BART ender

I thought Sideshow Bob was a Bart ender?

Shall Not I bar ten deer from entering?

Wot B art, en' der it mean anyfing?

Not really, I recall on one episode Sideshow Bob helps Bart...

So Bob was a Bart friender?

*Walks in* why is there little pin holes in the ceiling?

Or Semi-Bart Ender... Since after that he went back to attempted bart ending

Are you saying that after Bob's Bart friender bender he became a repeat offender?

I heard that it wasn't really Bob, it was a clone. And he died soon after as a result of a nasty accident with a food mixer.

So he was a pretender Bart friender who became a repeat offender after a bender in a blender.

Was the clown clone in town alone? or was the deadly do the work of a crew?

*looks around at blank faces*
Hmmm... We need a picker-upper...
*digs through the supply closet and locates twenty rolls of Bounty*
The best part is that I can use the cardboard tubes to make sleeping bags!