If you don't brush your teeth germs might explode in your mouth.  If you use the Colgate Motion Electric toothbrush it might explode in your hands.

Colgate-Palmolive is recalling the motorized toothbrush that has exploded in the hands of some users.

The company isn't making the brushes any longer but are afraid some may remain on store shelves until the recall is completed.

Electricity, water and your mouth; an explosive combination.

For more see this source article.