If we pursue this, we would be the guinea pig.

I have a cat. When I was younger, I had a guinea pig.

I have two Iceland horses, a very hairy dog called Looney, and a guinea pig.

What happens a lot in film, though not so much in the theatre, is that you get stroked and sort of massaged, like a little guinea pig.

I was a guinea pig for some hoodlums who thought they could hurt me and frighten me and keep other Negro entertainers from the South.

The labs were happy that I was brave enough to attempt to program it and the $5 million computer was left entirely to my use. I was their human guinea pig.