My gelding horse is producing semen
	
	
		HI, I have a 7yr old gelding that was gelded at 4. He just showed signs of ejaculation and produced sperm during the process.  He did this behavior twice. We were riding with a mare and another gelding. He was very vicious toward the gelding throughout the ride. He is also very dominant toward other horses at times. I heard neither a proud cut or decending testicle issue can produce sperm. So, what do I have here? I talked to the prev. owner and she said she is sure both testicles were removed.
Thank you