My wiper linkage came apart on the journey home from work in terrential rain once. I was in the middle lane of the A3 aswell.
Had no kind of breakdown cover and couldn't fix it on the hard shoulder so had to drive home with my head out the window..
But other than that, no I wouldn't.
My friend has been driving round with a blown headlamp bulb for months. He still has the sidelight, but his dodgy light has become something of a trademark and he is too lazy to fix it. (I have even offered to do it for him if he buys the bulb..)
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