unforgiveable charms?

[jwcpgh]

No: HPFGUIDX 79849

We know that there are Unforgiveable curses.  But I've been 
wondering, what with the strong feelings about Harry looking into 
Snape's pensieve thoughts, if there should be Unforgiveable charms as 
well.  For instance, shouldn't it be highly improper (if not worth a 
life term in Azkaban) to use Legilimency on someone without their 
permission?  Or to access their private thoughts in any other manner?

Laura, who's just now remembering that she was the fool who first 
proposed punishing Umbridge, which led to the whole gang-bang thread, 
and is hoping that she's not set off another land mine