Lags name one thing 'everyone knows' not to do in prison - and it's not what you think
![Lags name one thing 'everyone knows' not to do in prison - and it's not what you think](https://i2-prod.dailystar.co.uk/incoming/article33145264.ece/ALTERNATES/s615/1_UK-London-HMP-Wandsworth-Prison.jpg)
If you have the misfortune to one day end up in prison, then a bunch of ex-inmates have taken to Reddit to give their best advice on what one thing you should not do while there . . . and it's pretty simple