@larsmb once forgot the seals on my Bialetti and the water pressure lifted up the coffee and it clogged the outlet on top (how's that thing called?) until pressure rose enough to... rapidly unclog it. I had a coffee explosion all over the kitchen...
@cafechatnoir I never go to Starbucks because I'm not a big coffee drinker — and if I want coffee we have some excellent local indie coffee shops very close to my home. But if I ever did consider Starbucks, this would discourage me.