Half-naked stockbroker performed 'vigorous' solo sex act in Kensington Gardens toilet per Telegraph

Vigorous masturbating makes sense, vicious much less so... Different strokes for different folks (pun intended) 

'Court hears Thomas Boyd, 61, emerged from a cubicle 'viciously' pleasuring himself in front of a history lecturer

A retired stockbroker pleasured himself in front of a shocked American academic in the public toilets in Kensington Gardens, a court heard.History lecturer Dr Tom Sebrell was stunned to see a half naked Thomas Boyd, 61, emerging from a cubicle, jurors heard.

The former stockbroker was allegedly staring at the uncomfortable Dr Sebrell, who lives in west London, as he "viciously" performed a solo sex act.'

More here http://www.telegraph.co.uk/news/uknews/law-and-order/11723959/Half-naked-stockbroker-performed-vigorous-solo-sex-act-in-Kensington-Gardens-toilet.html