You can sure overload your bike and make it way more dangerous than a small trailer. I wouldn't overload my bike and put my kid behind me. Common sense rules here, if it doesn't look safe, then it's most likely not. Just Saying.
The Sandsman cometh and so he goeth too.......
Donít pick a fight with an old man. If he is too old to fight, heíll just kill you.
PS.....None of us get's out of this alive anyway.