englishal
If breaking hard on the runway after landing, retract the flaps (not the gear) straight away, else its easy to burst a tyre, and you stop quicker.
And why would such a manoeuvre be required?
LowNSlow
3. After checking the fuel for water, don't chuck it on the ground, pour it over the nearest tyre. 100LL evaporates too quickly to damage the rubber and will leave the water droplets on the tyre if any water is present. Much easier to spot than doing it on oily, dirty tarmac.
I am not sure that I agree with you. Sounds like an extremely bad practice. I am not a chemist but rubber and AVGAS do not mix.