Shake, rattle and roll.

If you're opening a bottle of champagne, what shouldn't you do?  Shake it - right? Well, apparently not so - it may seem counter-intuitive, but shaking the bottle, provided you then wait about three minutes before opening it, actually decreases the pressure inside the bottle, and therefore makes it less likely that you will get an explosive shower of foam.  So there!  My wife once did an instore demonstration for Cordorniu I think it was and I remember the trick she taught me for opening fizzy wine - hold the cork and turn the bottle, not the other way round.