1 or 2 sneezes is completely normal to me, I know that Java sneezes a handful of times actually. But this is how it’s been since we got him, and it’s usually when he’s digging in his hay (so we can assume it’s being triggered by hay dust). However, if this really is extremely abnormal, then you might want to consider a vet visit. If you ever are worried, I would just go with your gut feeling.
I did have concerns about Java’s sneezing when we first got him, but I was told not to worry unless they become sneezing “fits” – meaning like sneeze, sneeze, sneeze multiple sneezes in a row. Even this has happened very occasionally to Java, but we did take him to the vet and he was completely healthy. I would just schedule a check up, just because the cold ears sounds a little odd.
But, In my opinion, I doubt there’s a connection between the wire and the sneezing. If anything, you would find symptoms of an upset stomach from the wire, but this would happen sometime by the next day, so if it’s been over a day, you’re fine. Java destroyed one of our chargers when we left it out, and I’m sure he ate some pieces, but he was fine.
Just go with your gut. If you’re just a little worried, watch him and see if anything else comes up. If you really feel like something could be wrong, schedule an appointment.