[SkyRat]

well, I think you are wrong then

As far as I know buzz should wear off after 4 hours or so

[Sawdring]

I knew two people in college who made a pan of them and each ate one brownie the size of a hand. They only wanted a four hour high but got a 24 hour high. All they could do was sit in their chairs for the first four hours and could not even converse with anyone. The next day they wanted the buzz to go away because they had stuff to do but it lasted for a total of 24 hours. It is all dependent upon how the brownies are made.