Workers in U.K. have been advised to get back to work if they can't work at home but to avoid public transport; contradictory advice if you live or work in a big city like London, so the result has been predictable, packed tubes and buses.

Sing a song of sixpence
Whose scared to die?
Four and twenty Londoners
Crammed in a Pie.

When the pie was opened
They all began to sing—
It's the perfect petri dish
To catch a virus in.

The king is in his counting house
Disinfecting money,
The queen avoids the London bus
Though she needs some honey.

The maid is on the underground
Covering up her face
Along comes the virus
She's another case.

Sing a song of sixpence,
Who wants to die?
Four and twenty Londoners
Baked in a pie.

When the pie is opened
They all begin to sing—
Isn't that a dainty dish
To set before the king?