In reply to Linda Orritt:
> Apparently it’s hard work and toughened his muscles
Aye, a full super is heavy!
Probably the responsibility is worth emphasising. Although bees look after themselves, what they want isn't necessarily the same as what you want. As already mentioned, trying to keep on top of swarming behaviour is good for the hive and, especially, your neighbours, which requires regular checks at the appropriate time of year. And making yourself available to collect swarms, whether yours or other's.
You also have to check for disease, and treat accordingly if anything crops up. Some are pretty serious and may require you to report them.
There's also feeding over winter, and doing your best to keep out woodpeckers/mice/badgers/grizzlies etc, depending on local fauna.
On the other hand, fresh honey is fab, and there's something very soothing about sitting near the hives of a fine evening watching the ladies bustle about their business