Thank you, Capricex. Yeah, I agree, I should be very happy that Graham is so brave for a new piggy in a strange place! I guess it's my anxiousness of rushing things too quickly and ruining everything gets the better of me, especially since I'm so inexperienced with piggies (heh, you wouldn't even see this nervousness from me had he been a pet I'm used to, like a rat). And yes, the shelter is a wonderful place. It's called Wee Companions and they take magnificent care of their animals! Seeing your post this morning boosted my confidence a bit and I went through with it. I'mma tell you guys how it went!
So, closing off his kitchen area and flipping his hidey over to limit his retreats, I placed the pouch inside. He's suspicious and nervous, as I expected and it took a few minutes to effectively herd him into a corner where he had no choice but to go into the pouch! I then took him to the bathroom with his plate of veggies, locking my kitty out so he doesn't ruin anything (he of course was crying the entire time, silly boy).
I held Graham in the pouch on my lap for a bit, trying to coax him to eat. He wouldn't eat the lettuce, as I expected he wouldn't, so I kept petting him and trying now and then to feed him. He spent most of his time pointing his butt at me. XD Well, he eventually took the baby carrot and started chowing down! I offered green pepper and he starting eating it straight from my hand, even allowing me to pick his head as he did so! He also took some nibbles of the lettuce (I was told he wasn't as fond of lettuce as the other veggies; he'll still eat it, but is there another leafy green I can use to replace it that he might like better?). Eventually, he didn't want to eat anymore and became more fidgety (and my kitty growing increasing anxious without me), and I remembered his foster mom saying that he does that when he needs to pee.
So I ended the short session (I wanted to keep it short so as not to overwhelm him... or myself... or my kitty)! Well, putting him inside, he crawled out the pouch, hurried not to his hidey as I expected after this experience, but instead looked for the kitchen ramp (his favorite place to pee is by the end of the ramp of the kitchen area). Before I can put the ramp back down, I think he decided to pee on the fleece, but that's okay. When I reopened the ramp, he went into the kitchen area and just chilled there (and possibly emptied the rest of his bladder). I took the opportunity to spot clean his play area where the fleece resides (noticing that there's not many poops on the play side; I think he prefers to keep most of it in the kitchen).
Afterwards I met him at the kitchen door (he didn't hurry to me this time, but that's okay, given what happened prior) and gave him the plate of the leftover veggies. I then offered another piece of cilantro (his favorite) to show him that there's no hard feelings between us. He agreed and ate it out of my hand. I hand-fed him the other veggies (except the lettuce of course, and the cucumber; I'm not sure if he likes it or not as he ate it eagerly yesterday but not today) and left him to finish the less desirable veggies on his own time.
He's currently sleeping in his hidey again!
I'mma see if I can post a short video showing some of the highlights of the laptime. How do I post video's on this forum? :3 Also, should I do this again for his evening veggies, or leave him in peace and keep laptime to once a day, steadily increasing the time spent?
Anyway, thanks guys! I wouldn't have taken this step without you!!
EDIT: Oh! And should I leave the pouch in his cage full-time? I personally think it's still too warm to make it a regular part of the cage (although I suppose Graham would avoid it if he felt too hot), but is it best that he doesn't associate the pouch making an appearance with being captured for laptime?