Tunisia is by and large a very safe country. Islamic laws are as strict on theft as they are on alcohol, so the vast majority of Tunisians are brought up to be very honest – you might not think so when they try to sell you a carpet, but that’s bargaining, not theft! It is incredibly rare to come across anything as serious as a mugging.
Each hotel has contact with a local doctor, so seek their advice if you encounter medical problems. Otherwise dial 190 for an ambulance, 197 for fire and 198 for police.