Reminds me when we were watching an IRA suspects house in belfast, we were in a cemetary waiting to go back to camp, it was a cold dark night and I was lying in a shrub/blackthorn hedge near a gravestone next to the path, my face was next to a muddy puddle.
A young couple were walking through the cemetary either using it as a short cut home, or for a sh4g I'll never know, anyway the guy was gobbing off about the 'fcuking Brits, fcuking soft as sh1te, they dont scare me' etc.
I edged my hand into the puddle, getting it nice + cold + muddy, waited till they passed me and grabbed his gf's ankle.
She sh4t herself and he went running away like a big girls blouse
Pte 4GS was in trouble again, but hey ho, it was worth it