I think I might have used my horn a half dozen times in my life. I needed it coming through Atlanta last Sunday...a guy in a minivan was trying to occupy my lane at the same time I was. I have trouble "finding" the horn button, as it's not something I use often enough for it to be second nature. When I finally did find the button Sunday, I had already avoided the situation but wanted to voice my opinion about the guy's actions. Guess what? My horn isn't working. I haven't even bothered to troubleshoot it, though I'm sure it's the horn and not the switch. It's not hardly worth me going to the dealer over.
Besides, when in a panic situation, I think it's beter to have your thumb wrapped around the grip instead of on top of the switch pod honking the horn.
Most "lay 'er down" actions are not intentional. The only time it might be a good idea is if you're headed off a cliff and need to bail off the bike at the last second.
I always try and do a few panic manuevers in a large parking lot when I'm out riding by myself, and with the SERGU, I try and get a good feel for the ABS kicking in so I won't be surprised if/when the time comes to need it. It is VERY difficult NOT to lock up the rear wheel in a full blown panic stop without the ABS...been there, done that, got a t-shirt. ABS is the best thing since pajamas with feet in 'em. You lock up the front wheel on a bike and you're going down almost every time. I'm always amazed at the folks who say they "hardly ever use the front brakes", when at least 70% of your stopping power comes from their use. I use the front brakes more than I do the rear in normal riding...I use the rear as well, but just don't let that be my main stopping power. In fact, 80% of the time, I have the front brake lever covered with two fingers...I know that's not taught these days, but it used to be, and I personally think it's a good practice IF you practice.