‘A silly sports tradition:’ Selling hot dogs the old fashioned way at Oakland Ballers games

The 53-pound, aromatic hot dog steamer has seen more baseball games than the average fan ever will.

Most modern vendors said goodbye to those portable steamers long ago. Instead of lugging a giant steel box up and down stadium steps, they carry bags of foil-wrapped hot dogs, the moisture leaking into the buns as the dogs start to shrivel.

But not Mike Davie.

There’s a new ketchup toter in town, and he’s upholding the tradition set by legendary Bay Area vendor Jim Graff and former Oakland A’s vendor and unofficial mascot...