"I'm gonna do a bad thing." is a line from Tim Kasher song Bad, Bad Dreams. For more visit:
Tim Kasher Bad, Bad Dreams Lyrics
Line: I'm gonna do a bad thing. Preceding line: I godda go to confession. I'm gonna call the police- Following line: Don't tell my mama, don't tell my papa, # of occurrences: 1 Song snippet: ...
I godda go to confession. I'm gonna call the police-
I'm gonna do a bad thing.
Don't tell my mama, don't tell my papa,
baby, I've been dreamin' bad, bad dreams.

...