Is it okay to leave a sleeping baby at home while you run out for a quick errand nearby?

no. back in 1989 my dad once left my sister who was 5months old for like 10mins because he had to pick my mother from work. they were using bike and it was raining.(too poor to get a car at that time) noone could look after her as they were no neighbour at where they were staying. my sister at that time was sleeping.. when they got home he found her under the table in tears and almost no more voice from all that crying. thank god anything bad ever happened.