Close encounter with a shoplifter

so i was working at the till (aka cash register. i only discovered that after 2 weeks of working here in canada...) and this tall gangsta' looking guy comes up and asks how much these (he was holding a pair of black airwalk dots) shoes are. i did a price lookup in the register/till and told him it was $49.99. he asked me if they were on sale and i said no. then his wife, who was beside him, gave him the 'no-it's-too-expensive-we're-not-getting-that' kind of look (apparently she wears the pants in the relationship) and handed me a dora-the-explorer flip-flops (presumably for their kid) i rung it in, and told her that it was $12.99. and then she goes: "but there's a sale tag on it for $3.00". the sale tag was kinda loose so i kinda was doubting it. but then again, tagging has been a mess lately so what the heck, i decided to change the price.and then i asked if that was all they were buying. she said yes while giving her husband an annoyed look.

so she paid for it with a credit card, i had her sign the receipt, put the dora flipflops in a bag, put her copy with it and put the store copy in the drawer.

when i looked up. the husband was 10 feet away from the store holding the airwalks.
i was stunned and confused. is he taking those shoes away?
he looked back at me and we stared at each other for like 2 seconds and he walked away.

he was already gone when i realized what actually happened.
i didn't even considered running after him. (well he was 2x my size so i guess deep down inside i knew that running after him by myself wouldn't do me any good.)

but, anyways, i did tell the manager what happened. and he didn't suggest that we run after him either. (though i think we should have. the manager was a tall guy and he could probably take that moth@$f#$k@r down.)

i couldn't believe what happened. minutes after, i still feel so bad. maybe i should've said something instead of staring at him. or maybe i should've chased him (but keeping a good distance...) but the manager told me not to worry much about it.

hope kharma will get to that a#@h$#e