Yep,
But as we all know with flying it's about jumping through the hoops and then learning properly afterwards.
Despite cramming Air Law, and working out what coloured flare I should shoot at a tower, in response to a green flare being shot at me I've never shot a flare from an aircraft (first ever Flyby shooting?!)
In fact, I would be more than a little bit alarmed if somebody started loading a flare gun, in the passenger seat, and started talking about shooting it from the PA28!