Some people will tell you that the size of the gift doesn’t matter. Those people are completely full of it. Of course, the size of the gift matters! We’d much rather have a car than, say, a rubber band and a $5 gift card for Target! But if you’re going to gift fruit to your employees, at least spring for watermelons!
But that would be far too expensive for the OP’s dad. Instead of receiving a seasonal watermelon for Christmas, their hardworking father received a tangerine. A freaking tangerine. You can pick up an entire pound of tangerines for $1!