Ah, no, there is a misunderstanding; it is 100% of the time a complete accident, and last time it happened we were very understanding with each other. I attend a very high class dojo where any malicious contact would basically never go.
I suspect the problem here is that lower belts want to "test out" a wide array of techniques when sparring, rather than just throwing a reliable technique that they're comfortable with. I notice plenty of times, a fresh white or yellow belt will attempt something like a spinning back kick or tornado kick without really knowing how to correctly/quickly throw it, and it becomes clear that they're doing this to either impress the sensei or just experiment with new stuff. It's almost as if they have "run out" of techniques to throw 30 seconds into a match and they feel obligated to mix things up, if that makes sense.
Keep in mind that
I am in no way denouncing lower belts nor their curiosities, nor am I upset at them in any way; many these individuals are new to fighting and want to play around with new techniques, even if they aren't quite ready for them yet. In my case, this usually presents itself in the form of kicks that end up inadvertently juicing my jewels.