That Williams is a fisherman who often goes out on the River Tame, which is near Birmingham, to try and catch some nice fish. That day, however, he was not there to catch his dinner, but to retrieve a bait that he had previously lost. So he had brought his magnet, hoping to recover the precious possession. It wasn't even the first time he'd used that magnet. He could never have thought of finding himself fishing 19 grenades.
In the past he had occasionally thrown up a metal stud, a coin and other such nonsense. That day, he pulled up a strange ovoid object all covered in mud and dirt. "There and then it looked like a door knob," he said. Continuing his unique magnetic fishing, he has recovered 18 other objects in all respects similar to the first. Only then did he begin to realize what it was all about.
It was better to catch a fish
Those objects were grenades. Mr. Williams, instead of getting into a healthy panic, preferred to consult his friends on Facebook asking how he should behave. Everyone told him to call the police immediately, because those bombs could be dangerous. Especially since the man had well noticed that they still had the trigger tongue.
When the bomb squads received the grenades, they were able to verify that they were remnants of the Second World War. Thanks to an X-ray scan they also verified that they were now harmless. Nonetheless, they seized them in order to destroy them. Mr. Williams said he was a little upset: by reselling them he would have gotten a nice nest egg.