Have you ever been at a airport when trouble started and police were called

We were parked in the front line at Belfast ferry port when a large squad of armed police and immigration officers passed in front of our van.
They entered a Belfast-Glasgow service bus in a nearby lane and returned with about 10 men of middle eastern appearance in handcuffs.
Presumably they were attempting an easy illegal entrance to the UK mainland.

No but I have been there when the police where there with machine guns as an anti terror measure.

Somebody had a stroke and the ambulance was called.

No, thankfully.

Yes an African woman was arguing that the passport was hers, but the staff refused to believe it. The in-house Heathrow police were there in seconds and took her away.

No.

kinda. there was a guy in the line to go through baggage check ahead of me that had a pistol in his carry on. sorta limited as trouble went.

Yep, flew into Nassau, and a smuggler tried to run for it, crossing the runway in front of me as I was taxiing in.

not that i know of

Nope. Thank heavens!

Sure, a few times

Thankfully, no.