Hey Now, let's not get nasty about hammers. A more useful tool is hard to imagine.
If you're gentle, you can crack your eggs for breakfast, hammer your nails for work, mellow out the drunk at the bar, open your door when you get home and can't find your keys, and with one final simple step, assure you sleep soundly until you regain consciousness.
So, no more dissin the Hammer, eh?
Also, to open a can of beans with a hammer is not as easy as it sounds. Especially if it's a ballpean.