We love our Irish sense of humour.
And there's a local coal firm in Derry displaying it perfectly with their advertising.
First of all, there's Kevin's sign below.
Then there's his inspired new lorry design.
Since it's been posted on Facebook on Sunday, it's been shared more than 1,600 times.
He is also offering to take photos of customers in his 'heat your hole' lorry.
Brilliant!