You sure you wanna stick with that? It's polystyrene (6) that gas dissolves easily. Most water/soda bottles are made of PET/PETE (1). It takes hours and hours for gasoline to eat through that. Please, don't take my word for it, look it up.

Rewatch it as many times as you need to. The person standing there at the end is too thin and tall and the hair is too long to be Daryl.

She told Sasha at the very beginning of the show that she had brought a water bottle with gasoline in it. But I guess you were too busy complaining about the writing to notice.