I have name changed specially for this, as I am a long time poster and normally post about serious issues, which could also possibly out me. Although if those dirty fuckers are reading this they will know it's them.
My BIL (dp's brother) and SIL stayed at our house last weekend to house/dog sit plus use it as a mini break as we live in a touristy place. Me and DP were away at a wedding.
I am on FB but not under my own name due to my job, and I mainly use it to keep an eye on our teens. Nobody knows in my family I have an FB account as I don't want lots of friends requests and to end up being a full on FB presence!
Anyway, my SIL's profile is open, and I went and had a look, they had out a status about great weekend in [touristy place], and there are about 60 comments underneath, through which transpires that they had sex in our hot tub but he "slipped out" and there was "bubbly spunk".
The utter utter dirty bastards - the water has not been changed - they wouldn't know how - if I hadn't seen that on FB us or the kids might have been in that water soaking in his fucking diluted sperm. Vile.
DP is utterly embarrassed by this and says leave it, we won't have them stay again - don't say anything, but I have the rage and want them to know I know.
Grrrrrrr sorry but needed to vent!!!