Yes he can...
Pont 1. No, one can't claim ownage if all they can do is attain a headon shot... they haven't "owned" the attacker, they just brought it back to even ground.
Not that I have HOed you guns on guns yet, but just saying...
Point 2. Yes, you HO'd at me on the first pass that day when shuff was orbiting, and I avoided it... Then went vert, I followed you, had to dodge a pass by Shuff on the way up, and you came over the top and HO'd me again, you can lie about it all day long, it is what it is, but it doesn't matter one way or the other as you are not worthy, you have an agenda that doesn't include truly testing our skills against one another... you're just a skilless troll. You started with alt, in a better turning plane, and 2 vs 1 with both you and your friendly attacking me at the same time, and all you could muster was HO first pass, HO second pass... epic, retarded, fail~!
someone HO'ed that didn't avoid it can be claimed as owned/pwned, imho. 
Point 3. Again, until you understand what "owning" means, and usually that only comes by doing it, then you will stay clueless, as evidenced by this statement.
knows of a real toe curler of a HO I pwned him with one evening. He complimented me on it immediately afterwards and said wow, he hadn't been HO'ed like that in years... ergo he's instantly towerred, I'm undamaged, and I therefore claim pwnage. 
*see point 3.
I understand we may have a difference of understanding here, and am just proving my lack of it. 
no point here, I just fixed it for you.

PS. funny how you stated the situations where a HO cannot be claimed as ownage, but didn't say anything about the only time a HO can be claimed as ownage, and that is when the one being attacked is 1 vs 3 or more, and brings one of the 3 down with a HO, then ownage can be claimed, at no other time can a HO be claimed as ownage... and in your case it would be all you know to do(go for HO) so you have a shot at claiming ownage, u just need to fight 1 vs multiples more often!
This tells me 2 things, one- you are very defensive about your beloved HO as it is very dear to you(most likely because its all you got to depend on when up against a caliber opponent), and 2- you don't have alot of experience in 1 vs multiples(hence the fact it doesn't enter your mind when talking about HO situations... seems to be spot on!
