Not To be Outdone

Not to be outdone by mere Koreans, the Japanese have upped the ante in the bizarre cat/mouse war by genetically engineering fearless mice.

Using genetic engineering, scientists at Tokyo University say they have successfully switched off the rodents' instinct to cower at the smell or presence of cats — showing that fear is genetically hardwired and not learned through experience, as commonly believed.

Now we have to revamp the phrase "as timid as a mouse" to "as balls out as a mouse."