Contact the Police first to find out if it is legal to carry it. In the UK, most "self defence" sprays carry the same penalty as carrying a firearm. If it not legal, best not to get it. I appreciate that some people have had bad experiences here but mainly they have been unwanted attention rather than actual physical attacks and even when they have been physical it is usually someone groping in which case the best thing to do is take a picture with your phone and call the Police.
Contact the Police first to find out if it is legal to carry it. In the UK, most "self defence" sprays carry the same penalty as carrying a firearm. If it not legal, best not to get it. I appreciate that some people have had bad experiences here but mainly they have been unwanted attention rather than actual physical attacks and even when they have been physical it is usually someone groping in which case the best thing to do is take a picture with your phone and call the Police.