LANGLEY, VIRGINIA (REUTERS) - The nine to five life isn't for everyone.

The Central Intelligence Agency learnt that when Lulu, one of its bomb-sniffing dog trainees, decided that field work wasn't for her.

The CIA posted a series of photos on its Twitter page, detailing how Lulu "began to show signs that she wasn't interested in detecting explosive odours".

Trainers tried to engage the black labrador with food and play time in order to motivate her, but to no avail.

So despite showing early signs of promise in detecting explosive odours, she dropped out of the training programme.

But the CIA said Lulu would still have use for her sensitive skills - "sniffing out rabbits and squirrels" in the back yard of her handler's home, where she's now enjoying an early retirement.