How does one can kill a possible roach fam

[agonIZY]

Some little sub 5 roach emerged from my floor (litteraly) to try to ruin my sleep time wich it had succeeded but i want to know, i killed it already but i want to avoid any possible New unwelcomed visitor

 

[alurmo]

vlad the impaler method

 

[agonIZY]

vlad the impaler method

W take