Don’t look now, but Alimentation Couche-Tard (TSX:ATD.B) stock is crashing, with shares tumbling another 10% on a day that saw the convenience store kingpin make a US$20 billion offer (which works out to about €20 per share) for French grocer Carrefour. In prior pieces, I’ve noted that Couche had more than enough cash and credit to scoop up an elephant-sized deal and that it was likely that the firm would make a huge splash in 2021. And a huge splash it made to the downside, as investors were puzzled and surprised as to why the beloved Canadian c-store giant would want to get into the ...