Peanuts by Charles Schulz for February 28, 1966
Transcript:
Linus and Lucy walk outside. Lucy asks, "What's the matter with you?"<BR><BR> Linus replies, "My feet hurt."<BR><BR> Linus sits down and takes off his shoes and says, "I think my shoes are too tight."<BR><BR> Linus says, "It feels like my feet are being mugged!<BR><BR>
Ironic. There was and add for mugs above the strip when I read it.