.....when I hear/read the words "most effective" or "deadliest" when connected with any art. Also, when there are incredible stories on a style's/school's webpage that talk about how some untrained person was able to beat a 30+ MA veteran in only *2 moves*, after having read/watched the style's materials.
Plenty of other things set off the BS detector, too.....such as:
1) An excessive emphasis on trophies and/or "competition wins"
2) Big 'ol flashy uniforms with plenty of eye-popping patches
3) "Masters" who are under the age of 40
4) Any style where you can earn your Black in a year
5) Any style that offers to teach you incredible secrets of long-dead masters
6) "Masters" (see #3 above) who have supposedly trained with the founders/elders of their art, but have no proof....
7) Any studio/school that offers more than five arts, and encourages students to train in all of them (at substantial cost, and, amazingly, the students rise to become high rank in all the styles very quickly)
..... and so on, and so on.
Thing is, there is *plenty* of bad budo out there. Just like bad movies. Hmmmm....maybe there is some connection.....:rofl:
Anyway.....
Peace--