A deviation from this section's typical lunatic behaviour
This device may be patented and completely safe and legal (in Boston, USA at any rate). But all the same, we're not too sure if you'd catch us up on one when it comes time to painting the upstairs outside.
Technically it's probably no less safe than standing up on one ladder, but then there's a question of balance. Quite the talking point around the Building office today - what do you think?