"That's a good idea with the brick, providing you have enough rope. Otherwise, you'll end up pulling yourself off the roof.

Sounds obvious, but I guarantee someone will do it :)"

"We do. But putting a bolt through a ball would be a little like putting a needle through an egg without making a mess of your kitchen. You would need to drill slowly, and if you have that much time and those tools on your hands, you can probably make more versatile weaponry.

You might be better off with a metal weight from a gym. Comes ready made with a hole in the middle, is nice and heavy, and even has relatively sharp edges to increase the force of impact."

"I can dig the thought here. What a better way to pass those long summer days? However, might I suggest a pulley system to ensure that a particularly violent flail doesnt pull you off?"

"if fighting from a roof or high area and you have long poles just sharpen them and stab like !@#$. this cuts your 4 step system to 1 step."