Hold an eel by the tail idiom
To try to grab someone or something that is elusive.
He is a slippery salesman, so it is difficult to hold an eel by the tail.
The plan seems hard to hold an eel by the tail to keep up with the progress of project.
Stock market is hard to hold an eel by the tail in the COVID-19 pandemic.
Deceitful, calculating, and unreliable; elusive.
The verb "hold" should be conjugated according to its tense.
The similarity between the children and their parents
I looked at my father's eyes, then looked at my eyes. I thought the apple doesn't fall far from the tree.