Kids . . .

. . . are so thin-skinned these days:

A Staten Island public-school teacher was properly canned for making childish comments to his students, a state appeals court has ruled.

Douglas Lackow told one of his biology students to take a good look at the model of female reproductive organs he was holding because he “would never see one, so enjoy it.”

When a female student as Susan Wagner HS in Manor Heights yelled “Lackow sucks,” he responded, “No, you suck. Well that’s what it says in the boys’ bathroom,” court papers say.