I disapprove too much of the rituals associated with dating to bother putting any effort into finding someone. I could try dating sites I guess but I'm too lazy. I'm not very emotionally stable right now anyway so I can't say I'd wish the experience of being in a relationship with me upon anyone patient enough to suffer through such an experience until such time as I sort myself out.
Also I voted for all the options because I can. I'm not sure I'd use any of them as an excuse though, although I am pretty shy.