I got robbed two years ago. They even stole some humidors

. The police chief told me that every robbery in town was in homes with no alarm systems. I got one installed pretty quick. One neighbor was the last to have no alarm system until they got robbed too. IMHO if I was a robber I'd rob the unalarmed homes and forget about those with security systems.
Best of luck deciding whether to get a gun or not. I thought about it after getting robbed but I knew I shouldn't have one as I love to drink too much.