I have in a few 'arts'. Judo, Jeet Kun Do, and what is now called To Shin Do. Have you bro/Dr Abu Tamim? Incidently, the Prophet's (saaw) instruction to teach the youth archery, swimming, equestrianship could by analogy to include the role of martial arts, but within the boundaries of Shariah. As archery today is analogous to marksmanship with modern firearms, swimming applies to scuba and deepsea diving, and equestrianship is of course riding horses, but is also analogous to using all vehicles even flying aircraft and using watercraft. Thus, we should be proficient in Sea, Air, and Land. lol