Always carry a bog roll in the van. That's saved my socks on more than one occasion.
I was doing a boiler change few year ago and needed to curl one out , place was a bedsit for students and obviously no bog roll .
Used my socks , anyway finished boiler got it up and running left , next morning got call from landlord saying students have blocked toilet!!
Turned out blockage was my socks lol , ended getting paid to unblock my blockage KERCHING