Salman is an idiot

Salman Khan arrives home to find 'Salman is an idiot' written right in front of his door.

He says to his friend: 'That's strange - this seems to be written in urine.... Do some tests and find out who did it.'

Later that day, his friend returns to Salman.

'Bad news, I'm afraid! The urine is that of Vivek Oberoi!' 'I would have expected that...', Salman says,

'Why is that bad?' 'Well, the handwriting is Aishwarya's!'