Snape's Worst memory

[zgirnius]

No: HPFGUIDX 156389

"Jordan Abel":
> And it seems that anyone who can lie to voldemort's face (or
> dumbledore's, if you believe in ESE!Snape) and not get caught would
> have to be good at faking emotions - that's one aspect of occlumency,
> isn't it?

zgirnius:
What Snape seems really good at, except when he get extremely angry, is 
hiding emotions, not simulating them. All that coldness, those 
unreadable expressions, etc.

Obviously, you think this was an instance of this. Do you think there 
are other examples in the books where Snape is faking an emotional 
response?