Social psychologists believe the bystander effect can apply to a number of everyday situations. For example, on a busy sidewalk,you might not give money to a homeless man. On a crowded subway, you may not give up your seat to an elderly person. On the highway, you might choose not to stop and help someone change a flat tire. In these situation, you – and the other bystanders-feel less responsible because so many people are around to help, so not one ends up helping at all.