This actually happened later in the same sparring the previous fail. I had the De La Riva hook in and was planning to go for the back but my partner was quicker than me. He went for the pass. He stepped back to remove the hook
And slam dunked his privates on my foot.
Needless to say that sparring ended there.
But this kind of fail theme continued with him on the next day when he got elbowed there in sparring.