The context of the following conversation is Cameron slit his thumb on a blade, and then sewed the wound together.:
Cameron says I'm glad I know advanced first aid..
The friend responds When did you use your first aid skills?.
Cameron responds I was cutting something and slit my thumb on the blade..
The friend responds Was there a big gash?.
Cameron responds Not really, but it was bleeding a lot..
The friend responds That's definitely a time for advanced first aid..