So safety is talked about significantly on this site around spraying from a chemical stand point but I havent seen anything on this subject. Last week (7/15) i was spraying my cabinet with Ace Hardwares brand of paint which was a thinner nozzle than the Rustoleum 2x that I normally use. Later that day my index finger had a tingle and the next day it was numb from the knuckle up. Well its been 10 days and my finger is still numb and its driving me crazy, especially at work, every time I roll my mouse or even typing this out I'm constantly reminded of this pretty much dead finger tip. I searched online to see if this is a common issue and there were several sites talking through it. Basically can take up to 3 weeks for the nerve to heal.
So for what its worth, pay attention to how you spray and either switch up fingers when spraying for long periods or get attachments to put on the can that are more ergonomic. No one wants a numb finger for weeks at a time!