Big Bob's Early Exit

They said it was escape-proof
A fishbowl filled with tears
Stocked with hardened criminals
Who were locked away for years.
The goldfish markin' time inside
Had rap sheets nine miles long.
They swam in endless circles
Wonderin' what the heck went wrong.
The oldest inmate was a con
Who went by the name Big Bob.
He was netted seven years ago
For pullin' a riverbank job.
Yes, seven years of hard time,
Sunk in that cold, glass clink.
And that's seven years of nothin' to do
But scheme and plan and think.
He'd scrutinized the security,
And he thought he'd found a way
To slip right out of that goldfish bowl
And see the light of day.
The other inmates laughed at Bob
Not one of them believed him.
They had long since given up the dream
Of ever nibblin' freedom.
But Big Bob was optimistic.
Big Bob was undeterred.
Big Bob said he was leaving,
And Big Bob kept his word.
And one mornin' at the roll call,
The guards found somethin' weird:
Big Bob had vanished in the night,
Big Bob had disappeared.
No one knew how he did it.
They never found his route.
But the rumor swirlin' 'round the yard
Was that Big Bob tunneled out.