2 pens

Thai 101

Roy = Hundred
Pen = Thousand ('Pen' like in pandit)

Pornob tells a Thai girl "I am Roy"
She giggles and says "I am Pen"

And me , fingering the 'Easy Thai' booklet on my desk got the pen after all these days.

Meanwhile , if you think a pun is the lowest form of whatever , take heed ,(from last nites wiki trawl) no less than GK Chesterton indulged himself

Chesterton was a large man, standing 6 feet 4 inches (1.93 m) and weighing around 21 stone (134 kg or 294 lb).
His girth gave rise to a famous anecdote.
During World War I a lady in London asked why he wasn't 'out at the Front'; he replied 'if you go round to the side, you will see that I am'.