This is so not fair.
There are several packages in the office today. They all have an address with our street and post code on, but say Mint House rather than Software House.
Yes, it's let's bring large amounts of Hotel Chocolat stuff in day.
I spent nearly two days writing this code. (OK, it could have been quicker, but I'd never done a Perl XS extension before, so there was a little learning curve in there while I worked out how to return a string back to Perl from a DLL written in C.)
It takes 25 seconds to run.
It be run only once, ever.
But it saved huge amounts of time - if the work had been done by hand, it would have been hundreds of man hours, and been very prone to error.