Unless you inject a turkey baster's worth directly into your bloodstream. But then it wouldn't be the drugs, but rather that you put grass into your bloodstream.
This is often interpreted in another way: as someone with an enhanced chance of depression or schizophrenia, you're more likely to do drugs as an attempt to treat your problems. Whzen you do drugs in a noticeable way as a kid, its pretty much obvious, there's something wrong, that might get worse lateron.
#smokeweedeveryday