Advice...

[Bright_Spark]

Could you maybe see if your OH would be happy to take Tinks to work a couple of times a week so then you can take Finn in but Tinks wont be on his own everyday?

If Tinks doesnt seem happy on his own, then leave Finn with him on those days. That way you can still take Finn with you some days

 

[Tillywilly]

You dont want constructive input you want people to say what you want to hear. Therefore the only constructive thing I have to say is that you are barking mad...