Muhammad's Birthday was my favorite religious day as a child. Because it was festive and joyous and we celebrated it with fireworks (I am talking Lebanese fireworks and not the wimpy US-syle fireworks. Lebanese fireworks in my days would regularly lead to losing one's hands). Wahhabis forbids joyous occasions like the Prophet's Birthday. And this occasion is now part of the Sunni-Shi`ite feud. To respond to Saudi Wahhabis, Muqtada As-Sadr celebrated the occasion with a birthday cake.