Re: Safety amongs beginners
You know, this stuff is dangerous...Aikido being a martial art and all.
I think it is very important for the instructor to emphasize how dangerous it can be and to make sure that all students realize this. As Kat said, being told to tap out and to listen for the tap is very important. If you feel that you are in danger with your partner then having a 3-way discussion with your instructor on how to be safer is probably a good idea.
In my opinion the most dangerous student on the mat is probably a 3rd or 4th kyu since they have the skill to apply a technique, but maybe not the sense of how much "application" is appropriate.