One fine day at school, the teacher was teaching all the students
about the heart. After she had finished she said, "If any one has any
doubts about what I have thought please ask." Little Bobby stands up
and asks, "Teacher, does the heart have legs?" She replies, "no it
doesn't. What makes you ask such a question?" He says "Last night when
I went into my parents bedroom I over heard my dad saying

SWEET HEART spread your LEGS"