“Good evening sir”
“Bartender, what’s the wi-fi password, please ?”
Bartender “you’ll have to buy a round of drinks first”
“OK, two single malts and three pints of heavy”
“There you go sir, £17.20 please”
Customer hands over £20 note, “Keep the change, now what is the password please?”
Bartender “thank you, sir, as for the password
Spoiler: