No, well indeed.
I was asked when I started thinking about teaching, as I've been in the electronics industry now for 3+ years in 3 different companies (I graduated at a time when none of them were technically recruiting, but took me on as a temp for as long as their coffers would allow) and have been in my current position for nearly two years.
Answer: I've thought about it every time I've been between jobs... but this time the thought came back strongly a year into my current job - so I figure this time it's my decision instead of a last-resort choice brought on by joblessness.
I was also asked what I thought would be the hardest thing about teaching - I gave two answers, one silly: That in real life I speak freely and with a bit of a Carry-On innuendo-ey sense of humour and having to curb that but keep my personality would be interesting (which kicked off a short discussion about a teaching persona) - and that led into the real answer that I'm likely to have a hard time separating myself from the stress and worry of the well-being or bad behaviour of the kids and taking it personally. Apparently it was good that I knew my limitations... We'll see...!