My son is probably the world's sweetest, most obedient toddler; I wouldn't even think of using one on him. My daughter? Different story. We may need to get her one if we're unable to find a straight jacket in size 18-24 mos. Whatever works.
Kylee, married to my inimitable DH.
Mama to my seraphic sweetheart (3.2010),
my bodacious babe (11.2011),
and impatiently awaiting someone new (8.2013).