Ever thought Stoic needs an annoying drunk effect when you use it? Well, here it is. 
You gain stacks when you sip from the flask and they decay overtime. 
The strength of the drunk effect increases the more stacks you have. 
Using a medicbag removes 60% of the stacks, using a first-aid-kit removes 6 stacks.

The balancing of this is probably less then great, so if you have any suggestions, let me hear them.