In a message dated 9/2/99 2:18:57 PM Eastern Daylight Time, chyung@hknet.com 
writes:

<< OK, manga vol.4, ch.22, p.40, the Mito Kouman story, Minagi declared
 she wanted to star Yashichi, then promptly teleport away.
 
 Vol.4, ch.24, p.106-107, Minagi teleported twice during the arrest 
 of the Tenchi gang on Yatsuka. >>

Oh, I haven't gotten the 4th one yet.  I'm only up to the 3rd.