For really tricky windows stick a damp folded scrim under the ladders. If it's too wet though just say NO.if its slippery just dont do it , dont put a scim under it. DONT DO IT. it is dangerous.
go wfp
Do you not have spikes on your ladders :oIan Giles's used to have wheels.
Life is too short for all this rubbish. My ladders are purely for decoration on the top of my van. If I can't WFP it then its a no.
what a load of pansies!