I used to be a contender...

Today a boy had forgotten his trainers for his PE lesson. I directed him to the store of spares that we hold.

He came back holding 2 trainers, but with a confused and bewildered look on his face (to be honest this is his default setting.)

"Sir, I have a problem

[he was telling me!]

I have 2 trainers here, but these are a lefty lefty, and I am a lefty righty..."

What is one meant to say to that?