During a Marrakesh-London flight a BA pilot was forced to emergency land in Porto.

After drinking a bottle of duty-free vodka, a couple squabbled throughout the flight until the man attempted to smash the window next to him - to no avail.

Airplane staff attempted to pacify to couple, leading to vile threats by the woman. Things escalated. The woman began assaulting a hostess, and the man began assaulting his partner. By this time the pilot had begun an emergency descent, the man soon feared he was having a heart-attack and the woman was being restrained by male staff. Eventually they both calmed down and as soon as we landed at Porto airport, Portuguese police stormed onto the plane and grabbed the offending man. Having struggled throughout his arrest, the man was then dropped to the floor and tasered twice, began a seizure and was swiftly taken away by an ambulance.