Fishermen are not all using the same bait. It depends on the type of fish they're after.

Old Fisherman,

The water was dirty down by the docks,
There sat an ol’fisherman out on the rocks,

I couldn’t help but feel sorry ; seemed a likeable sort ,
But fishing was poor in this part of the port,

That sun was hot and there was no shade,
Twas a pretty sad picture this fisherman made,

With a nice little Bar just across the pier,
I asked him to join me for a tall cool beer,

Quickly standing with a big thank you grin .
He laid down his pole and followed me in,

We downed a mug , I just had to know,
What kind of success did he have to show,

How many have you caught? Is the fishing that great?
He held up his mug saying, you’re number eight !