Someone would probably excuse my lack of experience (I've only been training for 4 months) on this one, but sensei didn't!
We were doing bokken dori and I was winded. Had just finished a round as uke and was (Trying) to stand up when I forgot completely what one's supposed to do with a bokken when you're going from seiza to standing... other than, not drop it... I knew that... so I ended up leaning on it... sensei waited until I'd gotten up, then turned around and said "if Sensei sees you using bokken as a crutch, you're in trouble." I have heard "sensei growl" repeatedly but now have finally seen "that look"....
Why do I think it won't be for the last time??