I can remember dozens of occasions (4 Year approx), whilst living in a Student House when "stragglers", "Hang-ons" would take it upon themselves to walk from their Shitty Halls of Residence to our house, assuming they would be Smoked Up for Free!!...

....I realised after several occasions that these "Cling ons" didn't have a positive influence on me, nor did they offer anything constructive, SO I then started just answering the door and saying...."What you Want?"....

....this generally led to them into muttering and stuttering and saying....
...... "Can you sell me a Henry etc!!!"

YOU WILL LEARN TO SPOT THESE PEOPLE IN TIME!!!