737
An LAPD helicopter claimed to have ID'ed protesters from above and threatened to "come to your house"
(www.motherjones.com)
This is a most excellent place for technology news and articles.
Think a drone could get up above it and drop something into the propeller?
Drop it on the tail prop so they start spinning and get hella dizza and throw up.
I would be shocked if they aren't equipped with puke bags for such an event and then your plan is foiled.
I used helicopters a lot when I was on mountain rescue.
I never saw an air sick bag
That's just impolite.