Cracks me up the few times I have had a friend play my amp that even before they strum the first chord, they will adjust the tone stack to their "preferred settings".
I try to tell them it ain't a Fender.
AMEN Brother I preach this stuff constantly... Say something like it's different, before they plug in and try to get it to sound like their Dual Rectifier, or Marshall high gain whatever Cracks me up..
Tony