Police attend the home of an amateur astronomer after woman is heard shouting angrily. 'He invited me over to look through his telescope,' the woman explains to the officer. 'But then the dirty old so and so exposed himself.' 'Forgive me, officer - I'm a little hard of hearing,' the man explains. 'I asked the young lady if there was anything she'd like to look at.
I didn't realise she said Venus.'
This reminds me of the old joke about the lady who complained that the the bloke in the opposite flat kept walking around naked and exposing himself. When the policeman arrived he looked out of the window and said that he couldn't see anything.
"Not from there you can't", replied the lady, "but if you jump on the chair, climb on top of the wardrobe and bend forward you can just about see him"!