It was my birthday the other day and I got the nicest bunch of flowers (in Embrace purple as well!) but it wasn't until yesterday that I noticed that there were two sprigs of lillies in the vase.
Luckily my cats have been rather incurious about flowers in the kitchen but they could have jumped up while we were out and inspected, perhaps munched on them, as cats are wont to do. If that had happened, I might have come home to very sick cats and a very different ending to the day.
There are poisons everywhere and as often as we hear about them, they can sneak into our lives, causing havoc and in the extreme, death in our pets' lives.
In the meantime, look around your house with fresh eyes and see what lurks.