(as) slippery as an eel simile
OPPOSITE: (as) straight as a die.
If someone is as slippery as an eel, they behave dishonestly and cannot be trusted, or they are difficult to be found and caught.
I thought John was an upright and trusty person, but he turned out to be as slippery as an eel.
The killer is as slippery as an eel. He managed to elude detection for thirty years!
Mary always cheats on exams, but she never gets caught—she's as slippery an eel.
Efforts that aren't honest won't yield real results.
To try to grab someone or something that is elusive.
This simile originated from characteristics of an eel, and it dates from the 14th century.
To keep optimistic or have hope that something positive will occur and simultaneously prepare for a negative outcome
All I can do is hoping for the best and preparing for the worst.