The first time I turned up my Carvin my daughter said she could feel her insides moving. Mission accomplished!
All my gear is stuffed into my parent's garage on account that my garage didn't follow me when I sold my house. I plugged in my Mesa 215 to my GK 112 practice amp and turned it up to "ludicrous" (i.e. 90+%) My mom came out of the house holding her ears and complaining that the house rattled, the cats tore off and dove under the furniture and that she was frightened that she'd lose some 'control' over her 'innards'.
The echo off of the distant houses was another feel good moment.
Thought it was odd cause I play bass, but people can't identify bass, right?