Mick and Paddy were walking home from the pub. 
Mick says to Paddy, ' I can't be bothered to walk all dat way.'

'I know,' says Paddy, but we've no money for a cab and we've missed the last bus home.'

 
'We could steal a bus from the depot,' Mick suggests. 
They arrive at the bus depot and Mick tells Paddy to go in and get a bus while he keeps a look-out. 
After shuffling around for ages, Mick shouts, Paddy, what are you doing?  Have you not found one yet?'

 
Paddy shouts back, 'I can't find a No. 91' 
'Oh Jeysus Christ Paddy, ye thick sod, take a No. 14 and we'll walk from the roundabout."
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