No piercing is considered fully healed until it's a year old. Contrary to what you may read, it takes the body a full year to season a piercing to the point where it can be removed for extended periods of time without the risk of the piercing closing.
HBr is polar. The Lewis structure shows a central carbon atom forming four single covalent bonds with the four terminal bromines. The central carbon has no lone pairs and four bonding pairs, so the molecular geometry is tetrahedral (as is the electron geometry), and bond angles are thus approximately 109.5 degrees.
First draw the Lewis dot structure: Electron geometry: tetrahedral. Hybridization: sp3. Then draw the 3D molecular structure using VSEPR rules: Click and drag the molecle to rotate it. Decision: The molecular geometry of PCl3 is trigonal pyramidal with asymmetric charge distribution on the central atom. Therefore this molecule is polar. Phosphorus Trichloride on Wikipedia. Back to Molecular Geometries & Polarity Tutorial: Molecular Geometry & Polarity Tutorial.