If I use Switcheroo on a unit and my opponent responds with Tide Turner to switch the target's battlefield, does Switcheroo fizzle?

Ruling: Switcheroo whiffs (resolves to no effect) because the units are no longer at the same battlefield after Tide Turner resolves.

Nuances:

• The card whiffs rather than fizzles (there is a technical distinction between these terms)
• This applies whether Switcheroo is played from hand or from hidden