I think the shoes are a function of it being a TV set and thus having a dirty floor; regular Chinese people take off their shoes indoors.
It has to be the same pair of pants, because it's the same suit with the same chest pin thingy. Pants do ride up a bit when the leg is bent, but yes, it's a bit disconcerting. Especially since with the socks, Shen Wei isn't flashing his ankles so much as flashing his shins... Based on the way they sit, he might've rolled the pant legs up a bit for some baffling reason, but so that the extra fold is on the inside. More investigation is required.
The robot spider was used to check the exterior of the building for suspicious things:
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It has to be the same pair of pants, because it's the same suit with the same chest pin thingy. Pants do ride up a bit when the leg is bent, but yes, it's a bit disconcerting. Especially since with the socks, Shen Wei isn't flashing his ankles so much as flashing his shins... Based on the way they sit, he might've rolled the pant legs up a bit for some baffling reason, but so that the extra fold is on the inside. More investigation is required.
The robot spider was used to check the exterior of the building for suspicious things: