Calling all Rogues...ToT macro works/doesn't work...wtf...

Ok, Mr. Cile was nice enough to hook me up with a ToT to my focus target macro last night...yet it worked and didn't work. So I browsed google for a bit and came up with a shorter version of his...

#showtooltip Tricks of the trade

/cast [target=focus] Tricks of the trade

It works and doesn't work...read carefully...it works when I'm IN stealth OUT of combat...OUT of stealth OUT of combat...OUT of stealth INNNN combat....but NOT when I'm IN stealth IN combat (or more so when my focus is IN combat)....WTF?!?!?!?!?!?!?

Basically I want it to work on my focus target whether they're IN or OUT of combat and whether I'm IN or OUT of stealth. Why it works one way and not the other I have NOOOOOO idea. I've been searching Google for hours with no avail.

When I use the macro when my focus is IN combat, it works the way ToT normally does when you have to have your target either YOUR target OR click on their unit frames...please someone help :(