There is always minimalist dancing which involves the wild and energetic (not forgetting rythmical) movement of one toe (only one mind you, otherwise it could run away with itself and turn into a foot tap) - as long as you are wearing shoes or boots no one should be able to see this happening. Thereby negating the need for a PEL. However I strongly suggest that precautions be taken because this form of dancing can be very dangerous to the untrained and you could bruise your toe nail.