Time travel.

Met up with mates at a great old fashioned pub tucked away behind Sadler's Wells. It was full, well half empty of old men sat drinking by themselves in the quaint 70s decor of red velour and swirly carpets.
All of a sudden the slightly mad bloke in the background on the right left and said something to a young lad (who must have snuck in unnoticed) who leapt at him shouting and squaring up. Great entertainment watching two drunk blokes with no intention of fighting leaving and returning and pointing and shouting threats and curses as if all hell will break loose.