I'm not apologizing for shooting someone down in a game where you shoot people down and definitely not in a furball situation or a situation where we are trying to capture a base.
Of course every situation is different, and with base captures especially, it's a situation where the object is to eleminate the opposition asap, and every one involved understands that... but if that was the situation, you didn't mention it in your original post.
The other night I was dueling a rook f4u in my la, but it was in the middle of a 1 v oh, maybe 10 engagement. I knew I was everyone's target, but as most of the rest were 190's, 109's ,and even a 262 came swooping through, I chose to fight the biggest threat, while avoiding the picks as best I could. In the end I got taken out before I could finish off the Corsair. It didn't bother me a bit... Infact I was satisfied I was able to stay alive as long as I did.
As an aside;
As many times as I've been killed by Shawk, it's never been in a 1v1. It's always been a pick while engaged. And anytime I've engaged him, one of his groupies dives in. I've NEVER EVER known him to up and defend a base, but once the cap is established, he's guarenteed to show up.