man in blue t-shirt warning of mistake, looking at camera with admonishing finger and alarming.

man warning angry serious sign alert attention finger hand warn lesson anger showing looking advice ban frowning no annoyed accuse teacher teach hey you be careful boss bossy admonishing caution couching danger pointing scolding aggression people displeased strict gesture threaten dispraise disapproval male guy caucasian young adult blue background indoor isolated studio shot bearded tshirt