The context of the following conversation is Lee was a rough child and knows how to treat small injury's. Lees friend fell off their bike, so Lee put some burn cream on the scrape.:
Lee says I just fixed up my friend's scrape they fell off the bike and scraped their leg..
The friend responds That's really nice of you to help your friend..
Lee responds Yeah, I know all about first aid.
The friend responds Are you sure that's the right product to use?.