To spike the milk?

[PeachBellini123]

Due to a dairy intolerance I buy almond milk to have at work, which is kept in the office fridge. Have realised over the past couple of weeks it has been going down very quickly. I caught a colleague using it and did say 'oh can't you use the office milk?' They looked a bit guilty but not sure if they've stopped using mine. And I think it must be more than one person.

Would it be really bad if I spiked the milk to teach them a lesson? Having my name on it hasn't helped.

It would be something safe to consume but taste bad...

[SapphireStrange]

So I bought a new one and stuck a note on it saying "I might have pissed in this"

You should do this, OP. Definitely.

[DirtyDripSpout]

I recommend putting it in a baby's bottle. People are less likely to borrow it from there.

[acasualobserver]

Put a sticker on it saying "I've spat in this".

Be careful - someone would be bound to add, "So have we."

[missm0use]

Spike it with Salt - won't show up as being a different colour or being any different until they taken a drink.

Really bad that someone has been using your stuff especially when you've pointed out that it's due to a medical reason!

[BewtySkoolDropowt]

Put some white or magnolia paint in the carton, watered down.

And then as others say, put the milk in a baby bottle.

[PeachBellini123]

I love all your ideas I think putting it in a baby bottle/plastic bottle is the way to go...and maybe leave a bit in the cartoon with some salt in

[FairyDogMother11]

I had this with my no added sugar squash (I'm diabetic). Work only supplies sugary squash so I took in my own, labelled it, do not use etc - and everyone knows about my condition - and yet I still come in after a day off and it's been used up! I have to keep one of those mini drop ones in my bag if I want squash now but it's stupid I've had to resort to that!

[Oopsiedaiseyy]

Where I used to work, my milk would always go missing and I was always tempted to add salt to it!

I think you should add the dye pp mentioned - if the thief complains just say that u like the taste of the dye

[RaptorInaPorkPieHat]

would it be really bad to swap it for Milk of Magnesia?

[ChocolateBudgeCake]

If they pour it and find it green then wouldn't they just chuck it away? I would buy an alternative bottle like a slim fast or ready made formula and decant into that.

Plus an email round to everyone.