How do Muslims clean their bums after poop
Not until recently when I went to Tunisia for a trip, I realise that Muslim people don’t use toilet paper to clean their bums after poop. Instead, they clean with water using their left hand, usually a bidet or jug. That is why in Muslim toilets each toilet cubicle has a jug of water on top of the cistern.
This habit exists in Arabic countries, India, and north Africa. In many Asian Countries, people use a system where they do not sit, they squat and after the business they wash normally using a spicket to spray it out. Therefore, a special tip for travelling to these countries is: always keep some toilet paper in your bag, and pack some toilet rolls in your luggage.
I don’t mind squirt my bum with water and then use toilet paper to wipe dry, as long as my hand is not in direct contact with my behind. The problem is that I found the direction of the jets does not point to the anal area. It is extremely difficult to position yourself over the water jets so that the water hit the desired area. Another problem is the temperature of water. Once I ended up burning my sensitive area when I turn on the bidet. I remember I left the temperature control at the exact place where its temperature was comfort last time!
Left or right
This is why Muslims never eat with the left hand nor give it out when shaking hands. They don't greet or shake hands with their left hand. It is considered disgusting and rude. When you eat a meal with them, it's a good idea to tuck your left hand under your thigh. Right hand is used for noble business such as putting on garment and shoes, entering the mosque, shaking hands, etc, whereas left hand are for dirty jobs like blowing nose.