I agree with the others. Your word to your wife and the coming baby are more important than getting a free snake that may be in questionable health. There will be more freebies. The cost you would pay in loss of trust and hurt feelings is so not worth it. And if you were to do it anyway, there would be no going back to undo the harm done. Stick by your wife in this stressful (but happy) time in your lives. Don't break her trust in you.