Once, when some cops chased me up a tunnel, I took a left tunnel and after about 20 meters I wet my feet and walked backwards to split and backwards up the right tunnel until my footprints dried up, turned around and took off and got out a manhole.
I went back a few hours later & found multiple sets of footprints going up the left tunnel.
Win.
People said it was a brilliant idea, but they didn't know that I'd recently seen The Shining ;)
And yes, it seems the police didn't notice that my footprints got wetter as they went on
Cheers