When I first passed my test at 17, I used to de-ice my car using boiling water from the kettle!! I think I must have read it somewhere or misheard about warm water, but I did this for about a year until someone told me it was a miracle my windscreen never cracked!
What daft things have you done but somehow got away with?
Disclaimer: no advice should be followed on this thread. It's purely for lighthearted joy 😁