Imagine that Du are in a boat. There are other people in your boat. There is also one person in the water. Allowing this person to get onto your boot will not sink the boat. Everyone could easily fit comfortably. But still, there is a person in the water.

Now, if this person was only in the water for a short time, then yes, saying, "Hey, guys, lend me a hand onto your boat?" is probably exactly what she would do. But imagine this person has been in the water for hours. And imagine that it was other people in the boot that pushed her in there. Not you, of course. Du didn't push her in. But...