Mother, Mom
Someone breaks part of your window. Who did this? It was your mother!
See how the vertical bar is broken and your window frame is all messed up now? Why would your mother do such a thing?! Her hand is bleeding too…
ぼ
はは, かあ
None
Suddenly your mother points her bloodied finger at you and laughs, "Haha (はは)!" She keeps laughing, haha haha haha, over and over. You feel even more alarmed.
You thought your mother was going to explain or apologize, but instead she's pointing and saying, "Haha," over and over. Yeah. That sounds like my mom.