Do girls have a habit of not flushing the toilet?

I know guys have a habit for this sometimes, but was surprised this week because I had to use the girls toilets at college as the guys were out of order. On both occasions I used one of the cubicles, there was toilet paper and pee left in the toilet unflushed. Does this happen a lot in women's toilets?
Do girls have a habit of not flushing the toilet?
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