Where did the rambutans go?

Poh and I scaled Mt. Rambutan and came back with quite a harvest last night.
Like what he said, an experience of a lifetime.
We splitted our loot 50-50 and this morning he told me a secret, clearly amused by it.

While I was sleeping, he was half-awake and was startled by the rustling of plastic bag.
He opened his eyes and saw a silhouetted figure digging into his bag of rambutans and helping himself to it. The figure then rested on a bed, whose I shall not reveal. But anyway, he guessed that the figure was resting on his own bed. My share of rambutans were kept in a Breadtalk bag, which makes it even more tempting to take because it's wide open and doesn't make much noise when dug into.

Personally, I wonder if it was psychological, but after hearing it, I lifted my bag and sniggered, " Eh, it was more than 1 Kg, now it's slightly lighter! Haha. "

Why did our dear silhouette resort to such late night tricks ?

He could have asked.