| In addition we are raising eight sheep, a llama, a dog, two rabbits, a rat, and a guinea pig. |
| The worst was when you became a guinea pig for a hazardous experiment, and not even the lightest punishment was endurable. |
| It seems that not all rodents in those days were cute little balls of fur like your daughter's guinea pig. |
| The early study of carbon dioxide also gave rise to the expression to be a guinea pig, meaning to subject oneself to an experiment. |
| There was an uncleaned guinea pig cage in the corner, with a sleeping guinea pig living in its own filth. |
| The way I was planning this spiritual experiment, I would have been the sole guinea pig. |
