Today Only - ends in 11hrs or until sold out
You should definitely scream, "FIYAAAH!" every time your fire up your Fire. That won't annoy people on the commuter train at all.
Then you can yell "GUITAAAH!" at the guy sitting next to you like he's your lead guitarist. I guarantee you will make some interesting new friends. Did I say friends? I meant restraining orders from the Metro Transit Police.