Millipedes in the house

Not the best picture but I am recovering from a panic attack after finding this jackass on my paper towel roll while making my kid his lunch for school. My husband calls them “house millipedes”, I call them “needs to die in a fire”. Anyone else have these in their houses? How do I keep them from getting in? I’m told they’re harmless but my panic attacks tell me otherwise.

Not the best picture but I am recovering from a panic attack after finding this jackass on my paper towel roll while making my kid his lunch for school. My husband calls them “house millipedes”, I call them “needs to die in a fire”. Anyone else have these in their houses? How do I keep them from getting in? I’m told they’re harmless but my panic attacks tell me otherwise.