I like to clean house when my wife is out for the day mainly because I tear into the job like a mad man. My gear is in our living room so it gets moved, cleaned and put back in place. Once everything was put back to gather I fired up the amp to play a couple of nice loud licks before moving on to another job. Everything lit up and then....nothing, no sound. This has happened before at jams and when I take it in to Long & McQuade for warranty service it works fine. This has happened 4 times in the last 2 years...makes me look like an total idiot (some may say deservedly so). Anyway I lost it; with a string of all the profanity in German I could think of directed at the Hughes & Kettner Deluxe 40 I ended my tirade with a smack to it's top. Darn if it didn't spring to life! Good thing the wife was out as she is of German extraction.