Med students and doctors, let& #39;s laugh at ourselves. What& #39;s your most purulent stuff you& #39;ve ever moved in clinic or rounds?

Okay, since nobody is doing, let me start.
I once clerked with a colleague and we wrote +ve hx of seizures and convulsion
Conso: What& #39;s the difference?
Me with confidence: Convulsion is the one that has foam, seizure doesn& #39;t have foam.

PS, the consultant is on twitter.