WAF wrote on their YouTube video:
This chap was lucky. So many birds and mammals are not so lucky, being injured, or even killed, by carelessly discarded items. Tin cans, plastic ring holders for cans, rubber bands; these can all cause serious harm. We have seen too many incidents involving litter, and each time it was completely avoidable if some care had been taken to dispose of the litter responsibly.
The RSPCA states that foxes are one of Britain's most popular animals and "are not dependent on food from dustbins, although if rubbish is not properly contained they will take anything edible." Since this can cause problems (as it did for the little fox above), always make sure to crush your cans when you toss them out!
You can watch the full rescue below:
(YouTube: Wildlife Aid)