[Software Developer] Headhunting me straight after placement

Here's a goodie for you kids...

I just started at a new job about 3 weeks ago. I found the job through an agency, who was contracted by the company. The process actually went great, I had no major complaints about the recruiter or the process, surprisingly. Took less than 2 weeks from the phone call to signing the contract.

Just this morning, I wake up to a new email in my inbox, advising my of some opportunities as a rails developer and would I be interested? Nothing that unusual.

But then I noticed something unusual... The company name looks familiar, it's the same recruitment company that I got my job through!

The bastards are already trying to find me a new job and it hasn't even been 3 weeks!

Admittedly, it was a different person that emailed me, not the guy that I got the job through, but it seems like they should probably put a column on their big spreadsheet as to whether the candidate found a job or not.