Simply this:

There is a good chance a lot of people are going to be kettled in London tomorrow, especially during the evening and late hours. One thing we know about UK Kettles is that they don't allow you to go pee pee whilst you're in there.

The solution, which I urge you to share and distribute, is to ake a load of balloons and/or condoms with you on your big protest day out. In the case that you get kettled in, you can easily enough pee in the condom and seal it up. Clearly this is easier for boys than girls but with some imagination and add-ons the girls can do it too.

Whether or not this condom then gets thrown at the police is a moral issue which remains out of scope for this small document.

Many thanks,

Anonymous