When I was 18, I had 2 roommates.
They were twins.
And they were both smokers.
One day, I asked one of the twins, Matt:
“Why don’t you quit? It’s easy!!”
He answered:
“No! You don’t understand!”
I told him I would start smoking for one month and then I would quit - to prove that it is easy.
I started...
I still smoke now...
I understand.