Is it normal to have some exlamation mark hairs?

[eightbald]

If i fizzle my hand in my hair some times maybe 1-2 hair strands fall out. If i look closely I see they are exclamation mark hairs. Is this normal to have some "!" hairs? Never have I seen hair fell out that is of normal type. And I rarely lose hair when I shower etc. But the type of hair I see when shedding some is "!" hairs.

Thanks.