Indepth Drinking Example

Your character has constitution modifier of 4. Thusly making your alcohol tolerance 4

You have a drink that has an alcohol modifier of 4, making the intoxication save 12 (8 + 4 [From your current drink]).

You take four drinks, but because the drinks modifier is equal to your tolerance you are not require to make a save, automatically succeeding four times. On the fifth time you begin to make saving throws

You go for a fifth drink, the intoxication save is 12 (8 + 4 [From your current drink]) Now you must make an intoxication (constitution) saving throw.

You succeed, therefore the intoxication save for your sixth drink is still 12 because you did not fail the save. You are still currently sober.

You go for your sixth drink and succeed again, keeping the DC at 12. You are still sober.

You go for your seventh drink and fail, you are now buzzed. and because of your failure your save is now * DC 16 (8 + 4 [from your last failure] + 4 [from your next drink] or 12 + Next drinks alcohol content modifier)*.

You go for your eighth drink the DC is 16, you fail this roll by rolling an 8 and now instead go up 1d2 intoxication levels, becoming either jazzed or tipsy.

Because of your second failure, your intoxication save is now DC 20 (8 + 4 [From first failure] + 4 [from your second failure] + 4 [from your next drink] or 16 + Next drinks Alcohol Content Modifier).

Now you decide to take a drink from something with a lower alcohol content, a +1 ale. Your save is instead DC 17 (8 + 4 [From first failure] + 4 [from your second failure] + 1 [from your next drink] or 16 + Next drinks Alcohol Content Modifier).

You take a drink from the +1 ale, and fail. Now the save for your next drink is 17 + your next drinks alcohol content modifier.