I am beyond livid right now . last night I left my son with my mom while I went to work and when I…

I am beyond livid right now . last night I left my son with my mom while I went to work and when I came home my son outfit was changed. so I asked my mom what happened to his clothes and she said he has spit up. so today my son has the runs so I just asked my mom what was he eating when he spit up and she told me she gave MY baby some fucking mashed potatoes , and not plain mashed potatoes but it had butter and seasonings in it . so now I'm dealing with a fussy baby with the damn runs while she's in her room sleeping