Baffling crutch behaviour

So I was waiting at the traffic lights on the junction of Gilbert Road and Histon Road the other day. A bloke on a bike came up Histon Road carrying a pair of hospital crutches. As he was cycling over the junction, one of them fell out of his hand with a loud clatter. He didn't even stop, just cycled on in a leisurely fashion with his one remaining crutch. Someone yelled at him 'You've dropped your crutch!' and he muttered 'I'll leave it there'. And he left it lying right in the middle of a busy road junction.

Puzzling.

Once, cycling along that road that goes past the Crown Court to those backstreets where Pimbo and Jenny used to live, I noticed a bike pedal lying in the road. A bloke walking along the footpath started shouting "Your pedal! Your pedal!"

I ignored him at first, but he was getting really quite worried. "Your pedal! You've lost your pedal! YOUR PEDAL!"

I had to stop, turn round and point out that I wouldn't be pedaling my bike had it have been my pedal.

Another time when I was cycling to Great Shelford, I noticed a man shouting "You're mad!" at all the cars that drove past.

"Alright mate," he greeted me as I went past. "I'm just telling them that they're all mad."

What a difference a mere vowel can make! https://www.youtube.com/watch?v=MZjAantupsA

=> San i

Maybe he needed the crutches for his false dole claim, he may have thought you were from the Dole Office and would ruin his life by taking £12.68 off him on a fortnightly basis.