customer: can I get a bag?

vendor: yeah *bags product* want me to put it in another bag?

customer: yeah

vendor: want me to put this double-bagged product into another bag?

customer: yes

vendor: want me to put all of these bags into yet another bag?

customer: yes if you don't mind, I've got to take it on the train for an hour and the product looked a bit damp

vendor: ok I'll vacuum-seal this whole package *pulls out vacuum-sealing machine, seals it* oh wait I'm so sorry but I actually forgot to put the product into the initial bag. silly me.

customer: it's ok I'll just take the bags, thanks