"The person who lives in this house said [he/she] cleaned this up with tears in [his/her] eyes."
I call BS. If you cared that much, you'd have let them in.
In the case of this Alice parent and child... It seems that the parent Alice split her head open on the gate and died, and as the panic-striken baby Alice [hopped] around in a frenzy, she burned up all her energy, and with her internal bean paste gone bad, she died. The person who lives in this house said [he/she] cleaned this up with tears in [his/her] eyes.Yukkuris' attempts to invade human residences all meet with failure. A particularly common case is the parent[s] being unable to even open the gate, somehow dying in their frenzied efforts, and the rest of the family following after.