TODAY may be Blue Monday, the most depressing day of the year – but these guys obviously didn't get the memo.
It is the Monday of the last full week in January – a time when no one's got any money, everyone's diet fails, the weather is awful and to top it off, many of us are trying to stay off the booze.
But there is one social group who seem unaffected by this lugubrious January depression – children.
After all, those jobless layabouts never worry about money, they're still growing so can eat as much as they like and love nothing more than playing in the snow – plus most of them think beer and wine taste horrid.
So, we went into Weelsby Primary Academy to ask what makes them so annoyingly happy all the time in the hope that their advice could cheer up some of our readers.
Michael Coddington, 9, said: "Friends make me happy – they stick up for you if anyone is nasty and play with you at play time."
Kieran Thornton, 10, said: "Me and my brother play Minecraft on Xbox when we need cheering up.
"It's really exciting – you build little towns and have to mine and hunt to support them."
Shannon Young, 9, had a much more feminine approach to happiness.
"Nice clothes and dressing up always make me happy if I'm feeling sad," she said.
Shannon added: "I wear party dresses and I have a special Flamenco dress that my grandma got me from Spain."
The secret of joy is simple for Rianna Tupling, 9.
"Two things make me happy: playing with my friends and chocolate," she said.
Owen Webster, 9, said: "I'm happy when people don't fight and they are there for you.
"Sometimes my mum and dad argue but they are always there for me when I need them."
Demii Ely, 9, said: "School makes me happy – all the teachers are really nice and always help you.
"My mum and my dad also make me happy.
"I'm usually happy around Christmas and birthdays as well because you get lots of presents.
"Actually, lots of things make me happy – I'm happy most of the time."
So, there you have – the children of Weelsby Primary Academy have spoken.
Friends, computer games, dressing up, chocolate and school are the secrets to eternal joy.
So, with that in mind, it's no wonder that kids are so happy – and adults are so miserable in January.
And principal Heather Hawkes doesn't entirely disagree.
"Kids are so full of life that coming to school always cheers me up – that and chocolate," she said.
And, if by some inconceivable chance that hasn't cheered you up, you can always log onto www.thisisgrimsby.co.uk and hear the kids tell some jokes.
