Never had a problem with eggs exploding - but then I read the instructions... :_0 they call me "RTFM Robin" :-)

I never zap eggs on full power. I always leave them sit for a bit after finishing a couple of minutes - if you jiggle them that will provoke the explosion. RTFM.

It is the same with "superheating" water in the microwave. never had a problem. RTFM.

NEVER zap plain water for ANY longer than it really needs to get drinkably hot - you can SUPERHEAT water - and get hurt real bad! RTFM.

NEVER boil water, let it cool then reboil it in the m/wave - you have removed all the tiny dissolved particles of air, and the water will go ABOVE 100 deg Celcius and NOT BOIL!!!! - until you agitate it - or add sugar or coffee. Then it will explode out of the cup, right in your face. RTFM.

If making coffee, add the sugar, and even the instant coffee while cold and stir it. This will give the water some impurities to start to form bubbles around. I also add the milk before hand.

If making tea with a teabag in a cup/mug, don't overheat the water, take care when dropping in the teabag in case the water boils.

from
RTFM Robin.