In Scotland, schools had something known as 'the belt': a thick leather strap applied with force on the outstretched palm of the hand, with the other hand underneath for support. I had it several times, once five times from the headmaster for not getting my hair cut.
Once while still in primary school I got it twice for failing in my homework in some way, and it was so sore it caused me to *** myself, there in my short trousers in front of the class; and I can still vividly remember trying not to cry as I made my way back to my seat, red-faced, my hands stinging and my legs already beginning to chap. Brutal.