Merger of Companies

Hmmm i was talking to Chin Khiong when he told me this interesting thing.

CK: Yesterday Someone told me why FedEx and UPS will not merge into one company.
me: Why?
CK: Cos then you think what would the company be called?
me: hmm.... FedEx + UPS... Fed up?
Ck: yaaaa.. you get the idea
me: (-_-")