Hiss

I cleaned out Mama Moos cage, cleaned her dishes and box and brought in a clean towel... slid her and the babies forward put the clean towel all the way in and moved each baby ... I think I have 1 male and 3 females ... I was petting Mama and trying to get the dirty towel out and she hissed at me ... no growling, no moving just a single hiss ... i petted her and talked to her and got her some more wet food and she moved ... I dunno ... I kinda took the hiss as a good thing ...