Iuse 1/4 gram of Cocaine on Friday afternoons each week. I take DOT Drug Test on Tuesday. Do I have anything to worry about ?

Yes a great deal as this is clearly an addiction.

I agree... get ready for what will happen when you fail.

It is possible you will pass after 3 days, but for the love of All Things Holy, a DOT test? Please, please, PLEASE tell me that you do not drive anything, anywhere, ever on the same roads that I, my mother, my children, grandparents or any living things do...

I really try reserve judgement, so long as you are only destroying yourself (rarely the case, because someone, somewhere is bound to love you)- that's your business, but seriously, FFS, if you are doing a 1/4 gram a week and drive anything for a living, I HOPE you FAIL for the safety of the rest of us all!