… or more politely, “taking the mickey…” out of someone.  American version/response- “Hey there, Bill, you really had me going there for a minute…”

“Look Bill,” Mark would seem to be saying, “I know this ulcerated Shark lead is flimsy as Hell, but you have got to get me out of Lost Forest!  I really don’t even need a boat, I just need an excuse to hit the road!!”

Whatever Bill was drinking in that nice crystal glass is either meant to keep his right hand from going into a palsy, or is maybe causing it to… hard to tell…