Grammatical:

On the back of the bathroom stall doors here at work, there are signs with a few points about sanitation and hygenics. The last point ends by saying "the dirt and germs you leave behind can harm others." Whenever I read that, the wording makes me unsettled... what sounds better to me would be "the dirt and germs you leave behind can be harmful to others" because dirt is an inanimate object. Now I am no expert on grammer, but I feel like I'm in the right on this. Agree or disagree?

Incurable:

I am so tired. The kind where sleep doesn't do any good.