And if they leave 'surprises', they don't drop through the keys, so they're easy to get out. I thought I was the only person who called them 'surprises'! My guinea pigs have what I call 'surprise parties' all the time...they're wonderful pets but they do poop all the time.

I also let my guinea pigs type on the keyboard. Doom especially likes to sit in my lap while I'm on the computer, and then suddenly get very interested and step onto the keyboard while he looks up at the screen like he's reading it. He types very interesting things then.

I used to have a bright orange piggy named Ippie, and he liked to type. Once I cleaned out my keyboard and pulled out huge wads of orange hair.