Professor Dawkins actually gagged.

He jumps back, and he gags, and we had to do it three times, and all three times he gagged.

Keep in mind how many times he threw up and then, tell the doctor.

And he was really gagging. I thought he might throw up on me, actually.

When the Nile ran red, I too was afraid, until word came of a mountain beyond the cataracts which spewed red mud and poisoned the water.