Experiences - How does SWIY react when someone suspect swiy on drugs?

[trixion]

Swim wonder how to cover up all the traces when one has used drugs. Swim got a big shock when noone knows only swim know he just had speed..was asked: "I got a feeling that you are on drugs...! What the earth happended to you. Why you......blah blah."

Swim at once replied: "Of all things, what make you suspect? .....I was sick yesterday. " Swim started to find out what gave him away..and give a reason that he was sick recently or drank some dieting tea which gave him runs.

After the friend left, swim start to check himself in front of the mirror. Swim always did not notice what is wrong and end up correcting himself whatever the friends gave to him as reasons for them suspecting.

How will swiy react and actions done to prevent other from asking the same damn qn: "Are you on drugs?"