Cluedo

I reckon:

the guy buys shoes on a Saturday, then goes to the pubto meet friends. Gets hammered too fast because he didn't eat dinner, slurs his goodbyes, gets the underground back to Kelvinbridge, passing in and out of it en route.

Gets out, head spinning, goes up the escalator, into The Cave, buys bottles of beer, up to takeaway, buys kebab, back down into the carpark, berates some girls on the way down the steps, starts singing football songs, wanders out into the middle of the car park, sings more fotball songs at increased volume, stumbles about, falls down. Opens beer and eats half of kebab. Blinks at new shoe-box. Takes off old shoes, flings them toward the trees. Puts on new shoes, stands up unsteadily, says out loud:

"MAA NEW SHOES MAAAN! NEW FHUKCING SHOES MAAAAAN".

Holds arms out like Jesus, spills beer and donner meat. Zigzags to carpark exit. Throws shoe box, half kebab and beer bottle here. Looks at shoes again. Smiles, blinking slowly, filled with drunk pride with them. Laughs out loud. Takes an age to get to his flat, three streets away.