For me it went like this:
1. Wife and friend went on a dayhike in a place that can have sudden weather, got lost for a few hours, got safe.
2. Wife tells me about this then makes a snarky comment about how her friend tends to overpack for dayhikes, with things like flashlights, rain gear, etc.
3. I realize that Wife is dumb to criticize a friend for packing some safety/survival gear in the same sentence where Wife is telling me about getting lost on a hike. I decide that I need to pack dumb Wife some safety/survival gear so that dumb Wife makes it home to me the next time she gets lost.
4. I start researching and purchasing safety/survival gear. Major rabbit hole. Weeks dissappear. SO FUN.
5. Eventually I get on the subject of 'survival' knives. More weeks disappear. Look at lots of sites. Brain temporarily enters mall ninja/'Basement Tactical' zone.
6. A post on BladeForums makes some really good points about how easy it is to get distracted by the admittedly cool 'survival' toys and forget that you increase your chances of return via the soft skills; preparedness, awareness, and wilderness abilities. I stand down from mall ninjary and start thinking more.
7. I realize I'm on a forum full of awesome knife stuff and I'm an avid hiker/camper/outdoorsman who's always had utterly shit gear, and would be much better off getting some good knives for the stuff I do all the time.
8. I obsess on Busses for a while. Then customs. Tantos of all stripes. Stripes of all tantos. Cold Steel*. Kershaw. Spiderco. Then I see a BK2 for the first time.
9. I start reading up on the BK2, realize its list of features and strengths mesh perfectly with what I need, and slam an order through CRKS: "We ship the next day!"
10. Three weeks pass. I barely make it, but my knife finally shows up.
* I do still like Cold Steel, own an old Voyager folder (tanto blade, heh), want a Recon Tanto bad because it was in CHRONICLES OF RIDDICK, been cleaning up a Trail Hawk, and still might pick up an AK-47 for rough work duties.