Depending on how old the guy is and what his physical condition, several times a day, as well as at night. Getting turned on isn't the only reason, either: all sorts of things can cause an erection, whether the guy is aware of it or not.
I lose count. Half the time, I have no idea why I even get one. There's some times in the day where I get hard because I hot girl in a short skirt walks by, or something like that, but other times nothing happens that should be getting me hard.
hmm. I cannot specify the number of times but very often,such as seeing a beautiful female,having a noctural emission sometimes it happens in awkward moments just like that without any sexual stimulii. But I get erections very often nevertheless.
Whenever I have sex, so about every week or so. If I had more time it would be more often. Some weeks its a few times a day sometimes a month without any. All depends on what's going on with work and how much me and my wife are alone.