No one was to blame... I think.

[pippin_999]

No: HPFGUIDX 94872

--- In HPforGrownups at yahoogroups.com, "Geoff Bannister" 
<gbannister10 at a...> wrote:

> Does look a bit as if Remus was so gobsmacked by what he 
saw that he  took off without thinking everything through....<<

 So gobsmacked he takes off, forgetting about his potion, 
forgetting about the full moon, forgetting to de-activate the map, 
and yet when he gets to the Shack he's "remarkably calm"? One 
way or another, he's a terrific actor.

Pippin
noticing just now that Lupin stares at Black "so intently it seemed 
he was trying to read his mind." --ah, hah! Legilimency!