The issue was that, when the cleaners entered, he continued. As he admitted "When the cleaners came in, he thought he was having fun with them". This was the actual offence.

As mentioend we don't know all the in's and outs of this, only the court (and the bike ) does.... But... Is it really his fault they didn't see what was happening and leave?

Crikey, if the offense is as said because they saw a sex act they themselves thought was offensive (and the court subsequently decides it is, despite being in private) pretty much any one of us knocking off a quick one with a trusty fleshlight/hand/bike/pizza (or similar) is likely to end up on this register :O

Hardly his fault he was walked in on, and perhaps a little to drunk to realise he should stop, dammit I bet every one of us has heard our mouths saying something while drunk and the brain is screaming "for the love of god stop!", they should have just left and let the guy alone in peace, or send him to the USSR, in Soviet Russia the bike screws you!