Penicillin is apparently toxic to guinea pigs. Unfortunate, since a lot of medical experimentation used to be done on guinea pigs... Hence "I'll be the guinea pig", I suppose...
"I don't mean to sound bitter, cynical or cruel; but I am, so that's how it comes out." ~ Bill Hicks.
"To argue with a person who has renounced reason is like administering medicine to the dead." ~ Thomas Paine.
"One should not believe everything one reads on the internet." ~ Abraham Lincoln.
"If you're making a political point wearing a balaclava, you're a c***. It was true for the IRA and it's true now." ~ daftbeaker.