They will make you feel like crap, but not immediately. You don't care anyway, because it's late and you're hungry. The devil is the ultimate quickie. I try not to hold conference with the devil into the wee hours anymore. I got sick of waking up with regret.
Hard lessons are the most worthy of our learning.
They bring us to maturity. If we're lucky, they make us pause before heading into the night. I don't claim to always stop and think about my actions. I have much progress to make, for I am young. What I do know is that substance and order are the escape from our great weakness to harm ourselves.