How many pegs of scotch is fine for you?What are the reasons you want to take

I have some of the james bond/classic bar scene half glasses that look like that, but the bottom is wider. I can take up to 5 of those in scotch or whiskey. I don't do that often, I just wanted to test my ceiling (I was able to walk a straight line and beat Final Fantasy 4 in this condition ;p). Usually 1 is fine, and I only have drinks very rarely. I really do not need them. But if I want to sit and muse or enjoy the nightsky, I'll partake.