Just found this one under special features in the owners manual of one of the thingies that are heading my direction soon:
"THE TOP
Almost every musician we talked to told us that at some time or another they were going to end up sitting
on the amp. With this in mind, we would like you to know that we spent a great deal of time and
effort to remove all mounting screws, vents and other obstacles from the top of the combo and covered
it with carpet just to make these times more comfortable for you. Enjoy."

"THE TOP
Almost every musician we talked to told us that at some time or another they were going to end up sitting
on the amp. With this in mind, we would like you to know that we spent a great deal of time and
effort to remove all mounting screws, vents and other obstacles from the top of the combo and covered
it with carpet just to make these times more comfortable for you. Enjoy."
