22% of Secondary Teachers would support a return of the cane in extreme circumstances, according to a recent survey. (The other 78% saw no reason to wait for the extreme circumstances)
I only whacked a handful of kids in my time (mainly because the practice had been banned two years before I started work) but it's one of those ideas that appeals greatly after some obnoxious wretch storms out of your classroom swearing at you as he leaves. (ie every lesson in many inner city schools)
The reality of course is that only the nice kids would actually stick their hands out to get whacked. The bad ones would just tell you to F*** off and then we are back to square one. (Shortly afterwards their equally wretched parents would storm into school, summoned by mobile phone; to bang on the Head's door, shouting and raving moronically). That's one reason why a smaller percentage of Heads support the idea. (The other is that to get promoted to the top in schools you usually have to be a wimp with more interest in Diversity than Discipline).
If you want to hear my solutions then go out and buy my book.