Can an iPad become damaged by leaving it in a bathroom during and after a shower?
I take shower while my electronics are in the bathroom, and I've never had a problem. I also don't do any what I've said below.

There's not an verifiable easy way (for me at least) to answer this question with proof. If you'd like to minimize the likelihood of moisture damage and you don't want to remove the iPad from the bathroom (or you can't) there are a three things I can think of that might help:


Plug something into the headphone jack. Tt's what's most likely to cause a failure in the iPad from moisture.
Placing the iPad close (but not on) to the floor. The warm, moist air from the shower will collect at near the ceiling first.
Avoid rapid temperature shifts when leaving the bathroom. If the iPad does have some moist air trapped, the shift to a cooler area will cause the moisture in the air to condense into liquid water.