A man goes into a pub and seats himself on a barstool.The barman looks at him and says, "What'll it be?"The man says, "Set me up with seven whiskeys and make them doubles."The barman does this and watches the man slug one down, then the next, then the next, and so on until all seven are gone almost as quickly as they were served. Staring in disbelief, the barman asks why he's doing all this drinking."You'd drink them this fast too if you had what I have."The bartender hastily asks, "What do you have then?" The man quickly replies, "One dollar."