(Canada) How do I steal a leg of lamb?

It's Easter Sunday and I really need to steal a leg of lamb from a grocery store, I'm feeling super hungry and I'm gonna buy some bottle wine and just have a nice Easter by myself, but how do I steal it? I've stolen other stuff but a leg of lamb is kind of big.<br><br>I don't have a car so I have to walk there and I live in Canada by the way